Download DUET Master 2018 DU MSc Chemistry Question Paper With Answer Key

Download DUET (Delhi University Entrance Test conducted by the NTA) 2018 DU MSc Chemistry Question Paper With Solution Key

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DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
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DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
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DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
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1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
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1)
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3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
74)
75)
[Option ID = 3247]
[Question ID = 832]
1. [Option ID = 3327]
2. [Option ID = 3328]
3. [Option ID = 3326]
4. [Option ID = 3325]
Correct Answer :-
[Option ID = 3326]
[Question ID = 821]
1. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3283]
2. (2E, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3281]
3. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3284]
4. (2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
74)
75)
[Option ID = 3247]
[Question ID = 832]
1. [Option ID = 3327]
2. [Option ID = 3328]
3. [Option ID = 3326]
4. [Option ID = 3325]
Correct Answer :-
[Option ID = 3326]
[Question ID = 821]
1. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3283]
2. (2E, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3281]
3. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3284]
4. (2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
76)
77)
78)
79)
80)
Correct Answer :-
(2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
[Question ID = 819]
1. iv>i>iii>ii [Option ID = 3274]
2. ii>i>iii>iv [Option ID = 3275]
3. i>iv>ii>iii [Option ID = 3276]
4. iii>iv>i>ii [Option ID = 3273]
Correct Answer :-
iii>iv>i>ii [Option ID = 3273]
[Question ID = 779]
1. [Option ID = 3113]
2. [Option ID = 3115]
3. [Option ID = 3114]
4. [Option ID = 3116]
Correct Answer :-
[Option ID = 3115]
[Question ID = 873]
1. 0.65 [Option ID = 3492]
2. 0.8 [Option ID = 3491]
3. 0.75 [Option ID = 3490]
4. 0.82 [Option ID = 3489]
Correct Answer :-
0.8 [Option ID = 3491]
[Question ID = 798]
1. 2.3 [Option ID = 3190]
2. 1 [Option ID = 3192]
3. 3 [Option ID = 3191]
4. 2.7 [Option ID = 3189]
Correct Answer :-
3 [Option ID = 3191]
. For a simple paramagnetic compound, which one of the following is true? [Question ID = 805]
1. Magnetic susceptibility decreases initially and then increases with decrease in temperature [Option ID = 3220]
2. Magnetic susceptibility decreases with decrease in temperature [Option ID = 3218]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
74)
75)
[Option ID = 3247]
[Question ID = 832]
1. [Option ID = 3327]
2. [Option ID = 3328]
3. [Option ID = 3326]
4. [Option ID = 3325]
Correct Answer :-
[Option ID = 3326]
[Question ID = 821]
1. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3283]
2. (2E, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3281]
3. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3284]
4. (2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
76)
77)
78)
79)
80)
Correct Answer :-
(2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
[Question ID = 819]
1. iv>i>iii>ii [Option ID = 3274]
2. ii>i>iii>iv [Option ID = 3275]
3. i>iv>ii>iii [Option ID = 3276]
4. iii>iv>i>ii [Option ID = 3273]
Correct Answer :-
iii>iv>i>ii [Option ID = 3273]
[Question ID = 779]
1. [Option ID = 3113]
2. [Option ID = 3115]
3. [Option ID = 3114]
4. [Option ID = 3116]
Correct Answer :-
[Option ID = 3115]
[Question ID = 873]
1. 0.65 [Option ID = 3492]
2. 0.8 [Option ID = 3491]
3. 0.75 [Option ID = 3490]
4. 0.82 [Option ID = 3489]
Correct Answer :-
0.8 [Option ID = 3491]
[Question ID = 798]
1. 2.3 [Option ID = 3190]
2. 1 [Option ID = 3192]
3. 3 [Option ID = 3191]
4. 2.7 [Option ID = 3189]
Correct Answer :-
3 [Option ID = 3191]
. For a simple paramagnetic compound, which one of the following is true? [Question ID = 805]
1. Magnetic susceptibility decreases initially and then increases with decrease in temperature [Option ID = 3220]
2. Magnetic susceptibility decreases with decrease in temperature [Option ID = 3218]
81)
82)
83)
84)
85)
3. Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
4. Magnetic susceptibility increases initially and then decreases with decrease in temperature [Option ID = 3219]
Correct Answer :-
Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
Two isotonic solutions will have same: [Question ID = 872]
1. Boiling point [Option ID = 3486]
2. Osmotic pressure [Option ID = 3485]
3. Vapour pressure [Option ID = 3488]
4. Freezing point [Option ID = 3487]
Correct Answer :-
Osmotic pressure [Option ID = 3485]
Melting points of the chlorides of alkali metals decreases in the order [Question ID = 785]
1. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3138]
2. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3139]
3. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3140]
4. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3137]
Correct Answer :-
Residual entropy is the entropy of [Question ID = 862]
1. An isolated system [Option ID = 3445]
2. A system undergoing reversible reaction [Option ID = 3448]
3. A system at equilibrium [Option ID = 3446]
4. A system at absolute zero of temperature [Option ID = 3447]
Correct Answer :-
A system at absolute zero of temperature [Option ID = 3447]
Although carbon and oxygen are the constituents of carbonate and oxalate, the reason behind oxalate being an interfering anion
[Question ID = 803]
1. Higher oxidizability of oxalate than carbonate [Option ID = 3210]
2. Higher reducibility of oxalate than carbonate [Option ID = 3209]
3. Higher chelating ability of oxalate than carbonate [Option ID = 3211]
4. Higher polarisability of oxalate than carbonate [Option ID = 3212]
Correct Answer :-
Higher chelating ability of oxalate than carbonate [Option ID = 3211]
The major product formed in the dinitration of 4-bromotoluene is. [Question ID = 837]
1. [Option ID = 3348]
2. [Option ID = 3345]
3. [Option ID = 3347]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
74)
75)
[Option ID = 3247]
[Question ID = 832]
1. [Option ID = 3327]
2. [Option ID = 3328]
3. [Option ID = 3326]
4. [Option ID = 3325]
Correct Answer :-
[Option ID = 3326]
[Question ID = 821]
1. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3283]
2. (2E, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3281]
3. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3284]
4. (2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
76)
77)
78)
79)
80)
Correct Answer :-
(2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
[Question ID = 819]
1. iv>i>iii>ii [Option ID = 3274]
2. ii>i>iii>iv [Option ID = 3275]
3. i>iv>ii>iii [Option ID = 3276]
4. iii>iv>i>ii [Option ID = 3273]
Correct Answer :-
iii>iv>i>ii [Option ID = 3273]
[Question ID = 779]
1. [Option ID = 3113]
2. [Option ID = 3115]
3. [Option ID = 3114]
4. [Option ID = 3116]
Correct Answer :-
[Option ID = 3115]
[Question ID = 873]
1. 0.65 [Option ID = 3492]
2. 0.8 [Option ID = 3491]
3. 0.75 [Option ID = 3490]
4. 0.82 [Option ID = 3489]
Correct Answer :-
0.8 [Option ID = 3491]
[Question ID = 798]
1. 2.3 [Option ID = 3190]
2. 1 [Option ID = 3192]
3. 3 [Option ID = 3191]
4. 2.7 [Option ID = 3189]
Correct Answer :-
3 [Option ID = 3191]
. For a simple paramagnetic compound, which one of the following is true? [Question ID = 805]
1. Magnetic susceptibility decreases initially and then increases with decrease in temperature [Option ID = 3220]
2. Magnetic susceptibility decreases with decrease in temperature [Option ID = 3218]
81)
82)
83)
84)
85)
3. Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
4. Magnetic susceptibility increases initially and then decreases with decrease in temperature [Option ID = 3219]
Correct Answer :-
Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
Two isotonic solutions will have same: [Question ID = 872]
1. Boiling point [Option ID = 3486]
2. Osmotic pressure [Option ID = 3485]
3. Vapour pressure [Option ID = 3488]
4. Freezing point [Option ID = 3487]
Correct Answer :-
Osmotic pressure [Option ID = 3485]
Melting points of the chlorides of alkali metals decreases in the order [Question ID = 785]
1. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3138]
2. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3139]
3. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3140]
4. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3137]
Correct Answer :-
Residual entropy is the entropy of [Question ID = 862]
1. An isolated system [Option ID = 3445]
2. A system undergoing reversible reaction [Option ID = 3448]
3. A system at equilibrium [Option ID = 3446]
4. A system at absolute zero of temperature [Option ID = 3447]
Correct Answer :-
A system at absolute zero of temperature [Option ID = 3447]
Although carbon and oxygen are the constituents of carbonate and oxalate, the reason behind oxalate being an interfering anion
[Question ID = 803]
1. Higher oxidizability of oxalate than carbonate [Option ID = 3210]
2. Higher reducibility of oxalate than carbonate [Option ID = 3209]
3. Higher chelating ability of oxalate than carbonate [Option ID = 3211]
4. Higher polarisability of oxalate than carbonate [Option ID = 3212]
Correct Answer :-
Higher chelating ability of oxalate than carbonate [Option ID = 3211]
The major product formed in the dinitration of 4-bromotoluene is. [Question ID = 837]
1. [Option ID = 3348]
2. [Option ID = 3345]
3. [Option ID = 3347]
86)
87)
88)
89)
4. [Option ID = 3346]
Correct Answer :-
[Option ID = 3346]
Electronic spin a has eigen value [Question ID = 861]
1. [Option ID = 3443]
2. [Option ID = 3441]
3. [Option ID = 3442]
4. [Option ID = 3444]
Correct Answer :-
[Option ID = 3441]
Which of the following shows Jahn-Teller Distortion? [Question ID = 799]
1. [Option ID = 3194]
2. [Option ID = 3195]
3. [Option ID = 3196]
4. [Option ID = 3193]
Correct Answer :-
[Option ID = 3194]
Which of the following is an incorrect representation of the order of a reaction: [Question ID = 848]
1. [Option ID = 3389]
2. [Option ID = 3390]
3. [Option ID = 3392]
4. [Option ID = 3391]
Correct Answer :-
[Option ID = 3391]
Which of the following pair has the same electronic structure? [Question ID = 775]
1. Ag, Sn [Option ID = 3099]
2. Mg, Na
+
[Option ID = 3098]
3. Ca, Ar [Option ID = 3097]
4. Ar, Cl
-
[Option ID = 3100]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
74)
75)
[Option ID = 3247]
[Question ID = 832]
1. [Option ID = 3327]
2. [Option ID = 3328]
3. [Option ID = 3326]
4. [Option ID = 3325]
Correct Answer :-
[Option ID = 3326]
[Question ID = 821]
1. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3283]
2. (2E, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3281]
3. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3284]
4. (2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
76)
77)
78)
79)
80)
Correct Answer :-
(2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
[Question ID = 819]
1. iv>i>iii>ii [Option ID = 3274]
2. ii>i>iii>iv [Option ID = 3275]
3. i>iv>ii>iii [Option ID = 3276]
4. iii>iv>i>ii [Option ID = 3273]
Correct Answer :-
iii>iv>i>ii [Option ID = 3273]
[Question ID = 779]
1. [Option ID = 3113]
2. [Option ID = 3115]
3. [Option ID = 3114]
4. [Option ID = 3116]
Correct Answer :-
[Option ID = 3115]
[Question ID = 873]
1. 0.65 [Option ID = 3492]
2. 0.8 [Option ID = 3491]
3. 0.75 [Option ID = 3490]
4. 0.82 [Option ID = 3489]
Correct Answer :-
0.8 [Option ID = 3491]
[Question ID = 798]
1. 2.3 [Option ID = 3190]
2. 1 [Option ID = 3192]
3. 3 [Option ID = 3191]
4. 2.7 [Option ID = 3189]
Correct Answer :-
3 [Option ID = 3191]
. For a simple paramagnetic compound, which one of the following is true? [Question ID = 805]
1. Magnetic susceptibility decreases initially and then increases with decrease in temperature [Option ID = 3220]
2. Magnetic susceptibility decreases with decrease in temperature [Option ID = 3218]
81)
82)
83)
84)
85)
3. Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
4. Magnetic susceptibility increases initially and then decreases with decrease in temperature [Option ID = 3219]
Correct Answer :-
Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
Two isotonic solutions will have same: [Question ID = 872]
1. Boiling point [Option ID = 3486]
2. Osmotic pressure [Option ID = 3485]
3. Vapour pressure [Option ID = 3488]
4. Freezing point [Option ID = 3487]
Correct Answer :-
Osmotic pressure [Option ID = 3485]
Melting points of the chlorides of alkali metals decreases in the order [Question ID = 785]
1. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3138]
2. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3139]
3. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3140]
4. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3137]
Correct Answer :-
Residual entropy is the entropy of [Question ID = 862]
1. An isolated system [Option ID = 3445]
2. A system undergoing reversible reaction [Option ID = 3448]
3. A system at equilibrium [Option ID = 3446]
4. A system at absolute zero of temperature [Option ID = 3447]
Correct Answer :-
A system at absolute zero of temperature [Option ID = 3447]
Although carbon and oxygen are the constituents of carbonate and oxalate, the reason behind oxalate being an interfering anion
[Question ID = 803]
1. Higher oxidizability of oxalate than carbonate [Option ID = 3210]
2. Higher reducibility of oxalate than carbonate [Option ID = 3209]
3. Higher chelating ability of oxalate than carbonate [Option ID = 3211]
4. Higher polarisability of oxalate than carbonate [Option ID = 3212]
Correct Answer :-
Higher chelating ability of oxalate than carbonate [Option ID = 3211]
The major product formed in the dinitration of 4-bromotoluene is. [Question ID = 837]
1. [Option ID = 3348]
2. [Option ID = 3345]
3. [Option ID = 3347]
86)
87)
88)
89)
4. [Option ID = 3346]
Correct Answer :-
[Option ID = 3346]
Electronic spin a has eigen value [Question ID = 861]
1. [Option ID = 3443]
2. [Option ID = 3441]
3. [Option ID = 3442]
4. [Option ID = 3444]
Correct Answer :-
[Option ID = 3441]
Which of the following shows Jahn-Teller Distortion? [Question ID = 799]
1. [Option ID = 3194]
2. [Option ID = 3195]
3. [Option ID = 3196]
4. [Option ID = 3193]
Correct Answer :-
[Option ID = 3194]
Which of the following is an incorrect representation of the order of a reaction: [Question ID = 848]
1. [Option ID = 3389]
2. [Option ID = 3390]
3. [Option ID = 3392]
4. [Option ID = 3391]
Correct Answer :-
[Option ID = 3391]
Which of the following pair has the same electronic structure? [Question ID = 775]
1. Ag, Sn [Option ID = 3099]
2. Mg, Na
+
[Option ID = 3098]
3. Ca, Ar [Option ID = 3097]
4. Ar, Cl
-
[Option ID = 3100]
Correct Answer :-
90)
91)
92)
93)
94)
95)
96)
Ar, Cl
-
[Option ID = 3100]
Which of the following is not a colligative property? [Question ID = 842]
1. Osmotic pressure [Option ID = 3368]
2. Relative increase in vapour pressure [Option ID = 3367]
3. Depression of freezing point [Option ID = 3366]
4. Elevation of boiling point [Option ID = 3365]
Correct Answer :-
Relative increase in vapour pressure [Option ID = 3367]
Which of the following statement is false? [Question ID = 859]
1. Oxidation reaction takes place at the cathode of a galvanic cell [Option ID = 3435]
2. The potential of normal hydrogen electrode (NHE) is assigned a value of zero volts [Option ID = 3436]
3. The EMF of a galvanic cell can be measured with a voltmeter [Option ID = 3433]
4. Oxidation reaction takes place at the anode of a galvanic cell [Option ID = 3434]
Correct Answer :-
Oxidation reaction takes place at the cathode of a galvanic cell [Option ID = 3435]
Which one of the following is a superconductor? [Question ID = 796]
1. [Option ID = 3183]
2. [Option ID = 3184]
3. [Option ID = 3181]
4. [Option ID = 3182]
Correct Answer :-
[Option ID = 3182]
Which one of the following plays a major role in EDTA complexometric titrations? [Question ID = 797]
1. Concentration of ligand [Option ID = 3186]
2. Concentration of metal ion [Option ID = 3185]
3. Temperature of the reaction [Option ID = 3188]
4. Nature of buffer [Option ID = 3187]
Correct Answer :-
Nature of buffer [Option ID = 3187]
Pyrosilicates are the silicates in which the two tetrahedral units are linked at [Question ID = 780]
1. Three points [Option ID = 3119]
2. One point [Option ID = 3117]
3. Four points [Option ID = 3120]
4. Two points [Option ID = 3118]
Correct Answer :-
One point [Option ID = 3117]
In a face-centre cubic (FCC) type of crystal lattice, the number of atoms belonging exclusively to each unit cell within the lattice
is/are: [Question ID = 865]
1. 4 [Option ID = 3460]
2. 2 [Option ID = 3458]
3. 3 [Option ID = 3459]
4. 1 [Option ID = 3457]
Correct Answer :-
4 [Option ID = 3460]
Langmuir adsorption isotherm equation shows the variation of extent of adsorption as a function of: [Question ID = 847]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
6)
DU MSc Chemistry
Topic:- DU_J18_MSC_CHEM
The halogen having metallic character is [Question ID = 790]
1. Bromine [Option ID = 3159]
2. Chlorine [Option ID = 3158]
3. Iodine [Option ID = 3160]
4. Fluorine [Option ID = 3157]
Correct Answer :-
Iodine [Option ID = 3160]
If the density of air is 1.2 g/lit, what is the volume occupied by 7.8g of air? [Question ID = 860]
1. 10.10lit [Option ID = 3440]
2. 10 lit [Option ID = 3437]
3. 6 lit [Option ID = 3438]
4. 6.5 lit [Option ID = 3439]
Correct Answer :-
6.5 lit [Option ID = 3439]
Which of the following statement/s is/are true?
[Question ID = 855]
1. All of these [Option ID = 3420]
2. Adsorption increases with increase in pressure [Option ID = 3419]
3. Adsorption decreases with increase in temperature [Option ID = 3418]
4. Adsorption is an exothermic process [Option ID = 3417]
Correct Answer :-
All of these [Option ID = 3420]
Which of the following species represent the example of dsp
2
hybridization?
[Question ID = 53390]
1. [FeF
6
]
3-
[Option ID = 93549]
2. [Fe(CN)
6
]
3-
[Option ID = 93546]
3. [Ni(CN)
4
]
2-
[Option ID = 93547]
4. [Zn(NH
3
)
4
]
2+
[Option ID = 93548]
Correct Answer :-
[Ni(CN)
4
]
2-
[Option ID = 93547]
Correct characteristics of the functional groups of adenine in DNA base pair are
[Question ID = 824]
1. Both N(3) and C(6)NH
2
are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH
2
are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-
N(1) is a hydrogen bond acceptor and C(6)NH
2
is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
7)
8)
9)
10)
11)
12)
1. Partial molar entropy [Option ID = 3429]
2. Partial molar Gibbs free energy [Option ID = 3431]
3. None of these [Option ID = 3432]
4. Partial molar enthalpy [Option ID = 3430]
Correct Answer :-
Partial molar Gibbs free energy [Option ID = 3431]
From the following, which is more covalent? [Question ID = 781]
1. [Option ID = 3122]
2. [Option ID = 3123]
3. [Option ID = 3124]
4. [Option ID = 3121]
Correct Answer :-
[Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. [Option ID = 3168]
2. [Option ID = 3167]
3. [Option ID = 3166]
4. [Option ID = 3165]
Correct Answer :-
[Option ID = 3165]
Percentage of gold in 18 carat gold is [Question ID = 787]
1. 18 [Option ID = 3145]
2. 100 [Option ID = 3148]
3. 75 [Option ID = 3146]
4. 83.6 [Option ID = 3147]
Correct Answer :-
75 [Option ID = 3146]
Which pair from the following behaves as metalloid? [Question ID = 789]
1. Al and Zn [Option ID = 3155]
2. Rb and Cs [Option ID = 3156]
3. Br and I [Option ID = 3153]
4. Pt and I [Option ID = 3154]
Correct Answer :-
Al and Zn [Option ID = 3155]
For a substitution reaction following a dissociative mechanism, the rate determining step is [Question ID = 800]
1. dependent on the solvent concentration [Option ID = 3199]
2. dependent on the leaving group [Option ID = 3198]
3. dependent on the entering group [Option ID = 3197]
4. dependent on the nature of the complex [Option ID = 3200]
Correct Answer :-
dependent on the leaving group [Option ID = 3198]
The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
13)
14)
15)
16)
17)
18)
1. L-Aspartic acid and L-tyrosine [Option ID = 3304]
2. D-Glutamic acid and L-phenylgylcine [Option ID = 3301]
3. L-Aspartic acid and L-phenylalanine [Option ID = 3303]
4. L-Glutamic acid and L-phenylgylcine [Option ID = 3302]
Correct Answer :-
L-Aspartic acid and L-phenylalanine [Option ID = 3303]
In the following statements, which one is incorrect? [Question ID = 778]
1. [Option ID = 3112]
2. [Option ID = 3109]
3. [Option ID = 3111]
4. [Option ID = 3110]
Correct Answer :-
[Option ID = 3111]
In the dichromate dianion [Question ID = 791]
1. 3 Cr-O bonds are equivalent [Option ID = 3163]
2. 6 Cr-O bonds are equivalent [Option ID = 3162]
3. All the Cr-O bonds are non-equivalent [Option ID = 3164]
4. 4 Cr-O bonds are equivalent [Option ID = 3161]
Correct Answer :-
6 Cr-O bonds are equivalent [Option ID = 3162]
Vacuum is a measure of [Question ID = 804]
1. Leaking rate of air [Option ID = 3214]
2. Leaking rate of oil [Option ID = 3216]
3. Leaking rate of moisture [Option ID = 3215]
4. Emptiness [Option ID = 3213]
Correct Answer :-
Leaking rate of air [Option ID = 3214]
The Pre-exponential factor ?A? in the Arrhenius Equation depends on which of the following? [Question ID = 852]
1. Collision Frequency [Option ID = 3407]
2. Gibb?s free energy of reaction [Option ID = 3406]
3. None of these [Option ID = 3408]
4. Energy of activation of the reaction [Option ID = 3405]
Correct Answer :-
Collision Frequency [Option ID = 3407]
The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as: [Question ID = 869]
1. Roasting [Option ID = 3473]
2. Calcination [Option ID = 3475]
3. Cupellation [Option ID = 3476]
4. Leaching [Option ID = 3474]
Correct Answer :-
Calcination [Option ID = 3475]
Spectroscopic transitions leading to rotation of molecules will appear at which region of the electromagnetic spectrum? [Question ID
= 866]
1. Ultraviolet [Option ID = 3461]
2. Radiofrequency [Option ID = 3464]
3. Infra-red [Option ID = 3463]
4. Microwave [Option ID = 3462]
19)
20)
21)
22)
23)
24)
Correct Answer :-
Microwave [Option ID = 3462]
The ground state of a harmonic oscillator has number of nodes: [Question ID = 846]
1. 2 [Option ID = 3382]
2. 0 [Option ID = 3384]
3. 1 [Option ID = 3383]
4. 3 [Option ID = 3381]
Correct Answer :-
0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give
[Question ID = 786]
1. [Option ID = 3142]
2. [Option ID = 3143]
3. [Option ID = 3144]
4. [Option ID = 3141]
Correct Answer :-
[Option ID = 3144]
Which transitions are studied by UV spectrometer? [Question ID = 870]
1. Electronic [Option ID = 3478]
2. Vibrational [Option ID = 3480]
3. Nuclear [Option ID = 3479]
4. Rotational [Option ID = 3477]
Correct Answer :-
Electronic [Option ID = 3478]
What happens during digestion of a precipitate? [Question ID = 801]
1. Coalescence of smaller crystallites [Option ID = 3203]
2. Recrystallization takes place [Option ID = 3202]
3. Completion of precipitation [Option ID = 3201]
4. rate of the reaction increases [Option ID = 3204]
Correct Answer :-
Coalescence of smaller crystallites [Option ID = 3203]
Among the following group of oxides, the group of oxides that cannot be reduced by carbon to give the respective metals is [Question
ID = 788]
1. [Option ID = 3151]
2. [Option ID = 3150]
3. [Option ID = 3152]
4. [Option ID = 3149]
Correct Answer :-
[Option ID = 3151]
In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
25)
26)
27)
28)
29)
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
3. Baeyer-villiger oxidation [Option ID = 3250]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
Baeyer-villiger oxidation [Option ID = 3250]
Alkali metals form highly stable complexes with [Question ID = 795]
1. diethyl ether [Option ID = 3178]
2. Butadiene [Option ID = 3180]
3. Cryptand-222 [Option ID = 3177]
4. Cyclopentadiene [Option ID = 3179]
Correct Answer :-
Cryptand-222 [Option ID = 3177]
The unit of rate constant for a second order reaction is: [Question ID = 850]
1. [Option ID = 3397]
2. [Option ID = 3400]
3. [Option ID = 3398]
4. [Option ID = 3399]
Correct Answer :-
[Option ID = 3399]
What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. [Option ID = 3471]
2. [Option ID = 3470]
3. [Option ID = 3472]
4. [Option ID = 3469]
Correct Answer :-
[Option ID = 3469]
When a nucleophile encounters a ketone the site of attack is: [Question ID = 811]
1. both the carbon and oxygen atoms, with equal probability [Option ID = 3243]
2. the carbon atom of the carbonyl [Option ID = 3241]
3. the oxygen atom of the carbonyl [Option ID = 3242]
4. no attack occur as ketones do not react with nucleophiles [Option ID = 3244]
Correct Answer :-
the carbon atom of the carbonyl [Option ID = 3241]
In the cases of gases adsorbing on solid, which of the following statement/s is/are true?
[Question ID = 845]
1. Decrease in temperature of the system results in increase in adsorption [Option ID = 3378]
2. Decrease in pressure of the system results in decrease in adsorption [Option ID = 3379]
3. All of these [Option ID = 3380]
4. Adsorption is an exothermic process [Option ID = 3377]
Correct Answer :-
All of these [Option ID = 3380]
30)
31)
32)
33)
34)
35)
During a disproportionation reaction, [Question ID = 802]
1. Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
2. Metal ion goes to lower oxidation state [Option ID = 3205]
3. Metal ion goes to higher oxidation state [Option ID = 3206]
4. Metal ion remains unchanged in its oxidation state [Option ID = 3208]
Correct Answer :-
Simultaneous oxidation and reduction of metal ion takes place [Option ID = 3207]
The number of independent modes of vibration in a linear molecule having N atoms is [Question ID = 851]
1. 3N ? 6 [Option ID = 3402]
2. 3N ? 3 [Option ID = 3404]
3. 3N [Option ID = 3403]
4. 3N - 5 [Option ID = 3401]
Correct Answer :-
3N - 5 [Option ID = 3401]
A system that maintains a constant volume is known as [Question ID = 857]
1. None of these [Option ID = 3428]
2. Isochoric system [Option ID = 3425]
3. Adiabatic system [Option ID = 3427]
4. Isotactic system [Option ID = 3426]
Correct Answer :-
Isochoric system [Option ID = 3425]
Cobalt is present in [Question ID = 777]
1. [Option ID = 3106]
2. [Option ID = 3105]
3. [Option ID = 3107]
4. [Option ID = 3108]
Correct Answer :-
[Option ID = 3108]
In collision theory of bimolecular gaseous reactions, the Collision Frequency does not depend on: [Question ID = 849]
1. Pressure of the system [Option ID = 3394]
2. Number of molecules of each gas [Option ID = 3396]
3. Temperature of the system [Option ID = 3393]
4. Reduced mass of the system [Option ID = 3395]
Correct Answer :-
Pressure of the system [Option ID = 3394]
An inorganic mixture dissolves in hot conc. HCl giving a blue colored solution which on addition of water becomes pink. The mixture
contains [Question ID = 793]
1. [Option ID = 3172]
2. [Option ID = 3171]
3. [Option ID = 3169]
4. [Option ID = 3170]
Correct Answer :-
36)
37)
38)
[Option ID = 3170]
The Bragg?s equation for crystallography can be written as: [Question ID = 844]
1. [Option ID = 3375]
2. [Option ID = 3373]
3. [Option ID = 3374]
4. [Option ID = 3376]
Correct Answer :-
[Option ID = 3373]
[Question ID = 783]
1. [Option ID = 3129]
2. [Option ID = 3130]
3. [Option ID = 3132]
4. [Option ID = 3131]
Correct Answer :-
[Option ID = 3130]
[Question ID = 840]
1. [Option ID = 3358]
2. [Option ID = 3360]
3. [Option ID = 3357]
4. [Option ID = 3359]
39)
40)
Correct Answer :-
[Option ID = 3358]
[Question ID = 823]
1. ii [Option ID = 3290]
2. iv [Option ID = 3292]
3. iii [Option ID = 3291]
4. i [Option ID = 3289]
Correct Answer :-
ii [Option ID = 3290]
iii [Option ID = 3291]
[Question ID = 810]
1. [Option ID = 3239]
2. [Option ID = 3237]
3. [Option ID = 3240]
4. [Option ID = 3238]
41)
42)
43)
Correct Answer :-
[Option ID = 3239]
[Option ID = 3237]
[Question ID = 815]
1. [Option ID = 3260]
2. [Option ID = 3258]
3. [Option ID = 3259]
4. [Option ID = 3257]
Correct Answer :-
[Option ID = 3257]
[Question ID = 5490]
1. enantiomers [Option ID = 21957]
2. homomers (identical) [Option ID = 21959]
3. constitutional isomers [Option ID = 21960]
4. diastereomers [Option ID = 21958]
Correct Answer :-
homomers (identical) [Option ID = 21959]
[Question ID = 806]
1. Stop blood circulation [Option ID = 3223]
2. They attack liver [Option ID = 3224]
3. Cut-off breathing capability [Option ID = 3222]
4. They can cause blood infection [Option ID = 3221]
44)
45)
46)
Correct Answer :-
Cut-off breathing capability [Option ID = 3222]
[Question ID = 839]
1. [Option ID = 3354]
2. [Option ID = 3356]
3. [Option ID = 3353]
4. [Option ID = 3355]
Correct Answer :-
[Option ID = 3353]
[Question ID = 822]
1. carbene intermediate [Option ID = 3288]
2. free reaical intermediate [Option ID = 3285]
3. carbocation intermediate [Option ID = 3287]
4. carbanion intermediate [Option ID = 3286]
Correct Answer :-
free reaical intermediate [Option ID = 3285]
[Question ID = 843]
47)
48)
49)
1. The reduction potential of the system is increased [Option ID = 3370]
2. The reduction potential of the system remains the same [Option ID = 3369]
3. The effective concentration of the reduced form is increased [Option ID = 3372]
4. The reduction potential of the system is lowered [Option ID = 3371]
Correct Answer :-
The reduction potential of the system is lowered [Option ID = 3371]
[Question ID = 864]
1. [Option ID = 3453]
2. [Option ID = 3456]
3. [Option ID = 3455]
4. [Option ID = 3454]
Correct Answer :-
[Option ID = 3453]
[Question ID = 827]
1. C and D [Option ID = 3308]
2. B and D [Option ID = 3307]
3. A and C [Option ID = 3306]
4. A and B [Option ID = 3305]
Correct Answer :-
C and D [Option ID = 3308]
50)
51)
[Question ID = 841]
1. A4, B3, C1, D2 [Option ID = 3363]
2. A4, B3, C2, D1 [Option ID = 3362]
3. A3, B1, C2, D4 [Option ID = 3364]
4. A1, B2, C3, D4 [Option ID = 3361]
Correct Answer :-
A4, B3, C1, D2 [Option ID = 3363]
[Question ID = 794]
1. [Option ID = 3174]
2. [Option ID = 3173]
3. [Option ID = 3175]
4. [Option ID = 3176]
Correct Answer :-
[Option ID = 3173]
[Question ID = 829]
1. R configuration [Option ID = 3314]
2. centre of symmetry [Option ID = 3316]
3. S configuration [Option ID = 3315]
4. plane of symmetry [Option ID = 3313]
Correct Answer :-
R configuration [Option ID = 3314]
52)
53)
54)
[Question ID = 825]
1. N9 [Option ID = 3300]
2. N7 [Option ID = 3299]
3. N1 [Option ID = 3297]
4. N3 [Option ID = 3298]
Correct Answer :-
N7 [Option ID = 3299]
[Question ID = 818]
1. iv [Option ID = 3272]
2. i [Option ID = 3269]
3. ii [Option ID = 3270]
4. iii [Option ID = 3271]
Correct Answer :-
iv [Option ID = 3272]
[Question ID = 807]
1. [Option ID = 3228]
2. [Option ID = 3227]
3. [Option ID = 3225]
4. [Option ID = 3226]
Correct Answer :-
55)
56)
[Option ID = 3225]
[Question ID = 5543]
1. [Option ID = 22165]
2. [Option ID = 22163]
3. [Option ID = 22164]
4. [Option ID = 22166]
Correct Answer :-
[Option ID = 22165]
[Question ID = 834]
1. [Option ID = 3336]
2. [Option ID = 3333]
57)
58)
59)
3. [Option ID = 3335]
4. [Option ID = 3334]
Correct Answer :-
[Option ID = 3335]
[Question ID = 853]
1. [Option ID = 3411]
2. [Option ID = 3412]
3. [Option ID = 3409]
4. [Option ID = 3410]
Correct Answer :-
[Option ID = 3412]
[Question ID = 782]
1. [Option ID = 3127]
2. [Option ID = 3125]
3. [Option ID = 3128]
4. [Option ID = 3126]
Correct Answer :-
[Option ID = 3127]
60)
61)
[Question ID = 816]
1. [Option ID = 3263]
2. [Option ID = 3262]
3. [Option ID = 3261]
4. [Option ID = 3264]
Correct Answer :-
[Option ID = 3264]
[Question ID = 828]
1. homotopic [Option ID = 3309]
2. enantiotopic [Option ID = 3311]
3. constitutionally heterotopic [Option ID = 3312]
4. diasterotopic [Option ID = 3310]
Correct Answer :-
homotopic [Option ID = 3309]
62)
63)
[Question ID = 809]
1. [Option ID = 3234]
2. [Option ID = 3235]
3. [Option ID = 3236]
4. [Option ID = 3233]
Correct Answer :-
[Option ID = 3235]
[Question ID = 833]
1. [Option ID = 3331]
2. [Option ID = 3332]
3. [Option ID = 3329]
4. [Option ID = 3330]
Correct Answer :-
[Option ID = 3331]
64)
65)
[Question ID = 820]
1. [Option ID = 3280]
2. [Option ID = 3278]
3. [Option ID = 3279]
4. [Option ID = 3277]
Correct Answer :-
[Option ID = 3278]
[Question ID = 814]
1. Metamers [Option ID = 3256]
2. Functional isomers [Option ID = 3255]
3. Chain isomers [Option ID = 3253]
4. Position isomers [Option ID = 3254]
Correct Answer :-
Functional isomers [Option ID = 3255]
66)
67)
[Question ID = 831]
1. [Option ID = 3324]
2. [Option ID = 3323]
3. [Option ID = 3321]
4. [Option ID = 3322]
Correct Answer :-
[Option ID = 3323]
[Question ID = 854]
1. [Option ID = 3416]
2. [Option ID = 3415]
3. [Option ID = 3414]
4. [Option ID = 3413]
Correct Answer :-
[Option ID = 3414]
[Question ID = 863]
1. 2.24 [Option ID = 3452]
2. 11.2 [Option ID = 3450]
3. 22.4 [Option ID = 3449]
4. 1.12 [Option ID = 3451]
68)
69)
70)
Correct Answer :-
2.24 [Option ID = 3452]
[Question ID = 856]
1. [Option ID = 3424]
2. [Option ID = 3421]
3. [Option ID = 3423]
4. [Option ID = 3422]
Correct Answer :-
[Option ID = 3422]
[Question ID = 817]
1. i [Option ID = 3265]
2. ii [Option ID = 3266]
3. iv [Option ID = 3268]
4. iii [Option ID = 3267]
Correct Answer :-
i [Option ID = 3265]
[Question ID = 808]
1. [Option ID = 3229]
2. [Option ID = 3232]
71)
3. [Option ID = 3230]
4. [Option ID = 3231]
Correct Answer :-
[Option ID = 3232]
[Question ID = 835]
1. [Option ID = 3339]
2. [Option ID = 3340]
3. [Option ID = 3338]
4. [Option ID = 3337]
Correct Answer :-
72)
73)
[Option ID = 3339]
[Question ID = 838]
1. [Option ID = 3351]
2. [Option ID = 3350]
3. [Option ID = 3352]
4. [Option ID = 3349]
Correct Answer :-
[Option ID = 3349]
[Question ID = 812]
1. [Option ID = 3245]
2. [Option ID = 3246]
3. [Option ID = 3248]
4. [Option ID = 3247]
Correct Answer :-
74)
75)
[Option ID = 3247]
[Question ID = 832]
1. [Option ID = 3327]
2. [Option ID = 3328]
3. [Option ID = 3326]
4. [Option ID = 3325]
Correct Answer :-
[Option ID = 3326]
[Question ID = 821]
1. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3283]
2. (2E, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3281]
3. (2Z, 4Z)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3284]
4. (2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
76)
77)
78)
79)
80)
Correct Answer :-
(2Z, 4E)-3-chlorohexa-2, 4-diene-1,6-diol. [Option ID = 3282]
[Question ID = 819]
1. iv>i>iii>ii [Option ID = 3274]
2. ii>i>iii>iv [Option ID = 3275]
3. i>iv>ii>iii [Option ID = 3276]
4. iii>iv>i>ii [Option ID = 3273]
Correct Answer :-
iii>iv>i>ii [Option ID = 3273]
[Question ID = 779]
1. [Option ID = 3113]
2. [Option ID = 3115]
3. [Option ID = 3114]
4. [Option ID = 3116]
Correct Answer :-
[Option ID = 3115]
[Question ID = 873]
1. 0.65 [Option ID = 3492]
2. 0.8 [Option ID = 3491]
3. 0.75 [Option ID = 3490]
4. 0.82 [Option ID = 3489]
Correct Answer :-
0.8 [Option ID = 3491]
[Question ID = 798]
1. 2.3 [Option ID = 3190]
2. 1 [Option ID = 3192]
3. 3 [Option ID = 3191]
4. 2.7 [Option ID = 3189]
Correct Answer :-
3 [Option ID = 3191]
. For a simple paramagnetic compound, which one of the following is true? [Question ID = 805]
1. Magnetic susceptibility decreases initially and then increases with decrease in temperature [Option ID = 3220]
2. Magnetic susceptibility decreases with decrease in temperature [Option ID = 3218]
81)
82)
83)
84)
85)
3. Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
4. Magnetic susceptibility increases initially and then decreases with decrease in temperature [Option ID = 3219]
Correct Answer :-
Magnetic susceptibility increases with decrease in temperature [Option ID = 3217]
Two isotonic solutions will have same: [Question ID = 872]
1. Boiling point [Option ID = 3486]
2. Osmotic pressure [Option ID = 3485]
3. Vapour pressure [Option ID = 3488]
4. Freezing point [Option ID = 3487]
Correct Answer :-
Osmotic pressure [Option ID = 3485]
Melting points of the chlorides of alkali metals decreases in the order [Question ID = 785]
1. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3138]
2. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3139]
3. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3140]
4. LiCl ? NaCl ? KCl ? RbCl ? CsCl [Option ID = 3137]
Correct Answer :-
Residual entropy is the entropy of [Question ID = 862]
1. An isolated system [Option ID = 3445]
2. A system undergoing reversible reaction [Option ID = 3448]
3. A system at equilibrium [Option ID = 3446]
4. A system at absolute zero of temperature [Option ID = 3447]
Correct Answer :-
A system at absolute zero of temperature [Option ID = 3447]
Although carbon and oxygen are the constituents of carbonate and oxalate, the reason behind oxalate being an interfering anion
[Question ID = 803]
1. Higher oxidizability of oxalate than carbonate [Option ID = 3210]
2. Higher reducibility of oxalate than carbonate [Option ID = 3209]
3. Higher chelating ability of oxalate than carbonate [Option ID = 3211]
4. Higher polarisability of oxalate than carbonate [Option ID = 3212]
Correct Answer :-
Higher chelating ability of oxalate than carbonate [Option ID = 3211]
The major product formed in the dinitration of 4-bromotoluene is. [Question ID = 837]
1. [Option ID = 3348]
2. [Option ID = 3345]
3. [Option ID = 3347]
86)
87)
88)
89)
4. [Option ID = 3346]
Correct Answer :-
[Option ID = 3346]
Electronic spin a has eigen value [Question ID = 861]
1. [Option ID = 3443]
2. [Option ID = 3441]
3. [Option ID = 3442]
4. [Option ID = 3444]
Correct Answer :-
[Option ID = 3441]
Which of the following shows Jahn-Teller Distortion? [Question ID = 799]
1. [Option ID = 3194]
2. [Option ID = 3195]
3. [Option ID = 3196]
4. [Option ID = 3193]
Correct Answer :-
[Option ID = 3194]
Which of the following is an incorrect representation of the order of a reaction: [Question ID = 848]
1. [Option ID = 3389]
2. [Option ID = 3390]
3. [Option ID = 3392]
4. [Option ID = 3391]
Correct Answer :-
[Option ID = 3391]
Which of the following pair has the same electronic structure? [Question ID = 775]
1. Ag, Sn [Option ID = 3099]
2. Mg, Na
+
[Option ID = 3098]
3. Ca, Ar [Option ID = 3097]
4. Ar, Cl
-
[Option ID = 3100]
Correct Answer :-
90)
91)
92)
93)
94)
95)
96)
Ar, Cl
-
[Option ID = 3100]
Which of the following is not a colligative property? [Question ID = 842]
1. Osmotic pressure [Option ID = 3368]
2. Relative increase in vapour pressure [Option ID = 3367]
3. Depression of freezing point [Option ID = 3366]
4. Elevation of boiling point [Option ID = 3365]
Correct Answer :-
Relative increase in vapour pressure [Option ID = 3367]
Which of the following statement is false? [Question ID = 859]
1. Oxidation reaction takes place at the cathode of a galvanic cell [Option ID = 3435]
2. The potential of normal hydrogen electrode (NHE) is assigned a value of zero volts [Option ID = 3436]
3. The EMF of a galvanic cell can be measured with a voltmeter [Option ID = 3433]
4. Oxidation reaction takes place at the anode of a galvanic cell [Option ID = 3434]
Correct Answer :-
Oxidation reaction takes place at the cathode of a galvanic cell [Option ID = 3435]
Which one of the following is a superconductor? [Question ID = 796]
1. [Option ID = 3183]
2. [Option ID = 3184]
3. [Option ID = 3181]
4. [Option ID = 3182]
Correct Answer :-
[Option ID = 3182]
Which one of the following plays a major role in EDTA complexometric titrations? [Question ID = 797]
1. Concentration of ligand [Option ID = 3186]
2. Concentration of metal ion [Option ID = 3185]
3. Temperature of the reaction [Option ID = 3188]
4. Nature of buffer [Option ID = 3187]
Correct Answer :-
Nature of buffer [Option ID = 3187]
Pyrosilicates are the silicates in which the two tetrahedral units are linked at [Question ID = 780]
1. Three points [Option ID = 3119]
2. One point [Option ID = 3117]
3. Four points [Option ID = 3120]
4. Two points [Option ID = 3118]
Correct Answer :-
One point [Option ID = 3117]
In a face-centre cubic (FCC) type of crystal lattice, the number of atoms belonging exclusively to each unit cell within the lattice
is/are: [Question ID = 865]
1. 4 [Option ID = 3460]
2. 2 [Option ID = 3458]
3. 3 [Option ID = 3459]
4. 1 [Option ID = 3457]
Correct Answer :-
4 [Option ID = 3460]
Langmuir adsorption isotherm equation shows the variation of extent of adsorption as a function of: [Question ID = 847]
97)
98)
99)
100)
1. pH of medium [Option ID = 3387]
2. Pressure [Option ID = 3385]
3. Temperature [Option ID = 3386]
4. All of these [Option ID = 3388]
Correct Answer :-
Pressure [Option ID = 3385]
According to Lambert-Beer?s law, for a solution the transmittance is independent of which following factor? [Question ID = 867]
1. Molar extinction coefficient of the solute in solution. [Option ID = 3468]
2. Path length of the sample holder [Option ID = 3466]
3. Concentration of the solution [Option ID = 3465]
4. Temperature of the system [Option ID = 3467]
Correct Answer :-
Temperature of the system [Option ID = 3467]
The compressibility factor for ideal gas is:
[Question ID = 871]
1. 1 [Option ID = 3483]
2. >1 [Option ID = 3482]
3. Zero [Option ID = 3481]
4. <1 [Option ID = 3484]
Correct Answer :-
1 [Option ID = 3483]
The following compounds have been arranged in the order of increasing thermal stabilities. Identify the correct order

K
2
CO
3
(I), MgCO
3
(II), CaCO
3
(III), BeCO
3
(IV)
[Question ID = 784]
1. II?IV?III?I [Option ID = 3136]
2. IV?II?I?III [Option ID = 3135]
3. IV?II?III?I [Option ID = 3134]
4. I?II?III?IV [Option ID = 3133]
Correct Answer :-
IV?II?I?III [Option ID = 3135]
The covalent radius of Li is 123 pm. The crystal radius of Li will be [Question ID = 774]
1. [Option ID = 3096]
2. [Option ID = 3095]
3. [Option ID = 3094]
4. [Option ID = 3093]
Correct Answer :-
[Option ID = 3093]
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This post was last modified on 29 January 2020