Download DUET (Delhi University Entrance Test conducted by the NTA) 2018 DU MSc Chemistry Question Paper With Solution Key
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]
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]
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]
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]
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]
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]
FirstRanker.com - FirstRanker's Choice
This post was last modified on 29 January 2020