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

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

This post was last modified on 29 January 2020

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DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA

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]
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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]

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Which of the following species represent the example of dsp² hybridization? [Question ID = 53390]
1. [FeF₆]^3- [Option ID = 93549]
2. [Fe(CN)₆]^3- [Option ID = 93546]
3. [Ni(CN)₄]^2- [Option ID = 93547]
4. [Zn(NH₃)₄]²⁺ [Option ID = 93548]
Correct Answer :-
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[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)NH₂ are hydrogen bond acceptors [Option ID = 3295]
2. Both N(3) and C(6)NH₂ are hydrogen bond acceptors. [Option ID = 3296]
3. N(3) is a hydrogen bond acceptor and C(6)NH₂ is a hydrogen bond donor. [Option ID = 3293]
4. N(1) is a hydrogen bond acceptor and C(6)NH₂ is a hydrogen bond donor. [Option ID = 3294]
Correct Answer :-

N(1) is a hydrogen bond acceptor and C(6)NH₂ is a hydrogen bond donor. [Option ID = 3294]
Chemical potential is also known as [Question ID = 858]
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]
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From the following, which is more covalent? [Question ID = 781]
1. Al₂S₃ [Option ID = 3122]
2. AlN [Option ID = 3123]
3. Al₂Cl₆ [Option ID = 3124]
4. Al₂O₃ [Option ID = 3121]
Correct Answer :-

Al₂S₃ [Option ID = 3122]
The most probable candidate to form an octahedral complex is [Question ID = 792]
1. d¹⁰ [Option ID = 3168]
2. d⁸ (high spin) [Option ID = 3167]
3. d⁶ (low spin) [Option ID = 3166]
4. d¹ (low spin) [Option ID = 3165]
Correct Answer :-

d¹ (low spin) [Option ID = 3165]

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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 :-
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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]
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The amino acid constituents of artificial sweetener given below are: [Question ID = 826]
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. Atomic radius of Zr and Hf are same because of lanthanide contraction [Option ID = 3112]
2. La(OH)₃ is less basic than Lu(OH)₃ [Option ID = 3109]
3. La is actually an element of transition series rather than lanthanides [Option ID = 3111]
4. In lanthanide series, ionic radius of Lu³⁺ ion decreases [Option ID = 3110]
Correct Answer :-

La is actually an element of transition series rather than lanthanides [Option ID = 3111]

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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 :-
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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]
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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]
Correct Answer :-

Microwave [Option ID = 3462]

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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 :-
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0 [Option ID = 3384]
Tritium is a radioisotope of hydrogen, it undergoes disintegration to give [Question ID = 786]
1. a-particles [Option ID = 3142]
2. ß-particles [Option ID = 3143]
3. Neutrons [Option ID = 3144]
4. X-rays [Option ID = 3141]
Correct Answer :-

Neutrons [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]
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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. CaO, K₂O [Option ID = 3151]
2. Fe₂O₃, ZnO [Option ID = 3150]
3. PbO, Fe₃O₄ [Option ID = 3152]
4. Cu₂O, SnO₂ [Option ID = 3149]
Correct Answer :-

CaO, K₂O [Option ID = 3151]

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In which of the following reaction migration of alkyl group from carbon to oxygen is observed? [Question ID = 813]
1. Pinacol-pinacolone rearrangement [Option ID = 3249]
2. Baeyer-villiger oxidation [Option ID = 3250]
3. Prepration of phenol from cumene hydroperoxide [Option ID = 3251]
4. Both Baeyer-villiger oxidation and Prepration of phenol from cumene hydroperoxide [Option ID = 3252]
Correct Answer :-
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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. S^-1 [Option ID = 3397]
2. mol^-2 dm⁶ s^-1 [Option ID = 3400]
3. mol dm^-3 s^-1 [Option ID = 3398]
4. mol^-1 dm³ s^-1 [Option ID = 3399]
Correct Answer :-

mol^-1 dm³ s^-1 [Option ID = 3399]
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What is the unit of specific resistance (or resistivity) of a conductor? [Question ID = 868]
1. Ohmcm^-1 [Option ID = 3471]
2. Siemens^-1 [Option ID = 3470]
3. Ohm^-1 cm [Option ID = 3472]
4. Siemens^-1 cm [Option ID = 3469]
Correct Answer :-

Siemens^-1 cm [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]

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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 :-
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All of these [Option ID = 3380]
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]
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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. Vitamin B₂ [Option ID = 3106]
2. Vitamin B₁ [Option ID = 3105]
3. Vitamin B₆ [Option ID = 3107]
4. Vitamin B₁₂ [Option ID = 3108]
Correct Answer :-

Vitamin B₁₂ [Option ID = 3108]

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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 :-
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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. Fe³⁺ [Option ID = 3172]
2. Cr³⁺ [Option ID = 3171]
3. Ni²⁺ [Option ID = 3169]
4. Co²⁺ [Option ID = 3170]
Correct Answer :-

Co²⁺ [Option ID = 3170]
The Bragg's equation for crystallography can be written as: [Question ID = 844]
1. ? = (2d / sin ?) [Option ID = 3375]
2. ?= (2d sin ?) [Option ID = 3373]
3. ?= (2/d) sin 2?) [Option ID = 3374]
4. ?= 1 / (2d sin ?) [Option ID = 3376]
Correct Answer :-

?= (2d sin ?) [Option ID = 3373]
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The product X in the flowing reaction 6LiH+ 8BF₃? 6LiBF₄ + X is [Question ID = 783]
1. B₄H₁₀ [Option ID = 3129]
2. B₂H₆ [Option ID = 3130]
3. B₃H₈ [Option ID = 3132]
4. BH₃ [Option ID = 3131]
Correct Answer :-

B₂H₆ [Option ID = 3130]
The product obtained in the following conversion is:

This download link is referred from the post: DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA
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This post was last modified on 29 January 2020

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