Download DUET Master 2018 DU PhD in Chemistry Question Paper With Answer Key

Download DUET (Delhi University Entrance Test conducted by the NTA) 2018 DU PhD in 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 PhD in Chemistry

Topic:- DU_J18_PHD_CHEM

Which of the following statements about sulfur dioxide is true? [Question ID = 677]
1. It forms a S-S dimer in condensed phase [Option ID = 2707]
2. Its anhydride of sulfuric acid [Option ID = 2706]
3. Its O-S-O angle is 180° [Option ID = 2708]
4. It is a product of the combustion of fossil fuels that contain sulfur [Option ID = 2705]
Correct Answer :-

It is a product of the combustion of fossil fuels that contain sulfur [Option ID = 2705]
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Which of the following is a strong acid in pure liquid HF [Question ID = 683]
1. H2O [Option ID = 2731]
2. NaF [Option ID = 2729]
3. CH3COOH [Option ID = 2730]
4. SbF5 [Option ID = 2732]
Correct Answer :-

• SbF5 [Option ID = 2732]
Each of the following molecules can act as a chelating agent EXCEPT [Question ID = 679]
1. HC(CH2CH2NH2)3 [Option ID = 2716]
2. CH3NHCH2CH2CH3 [Option ID = 2714]
3. N(CH2CH2NH2)3 [Option ID = 2713]
4. H2NCH2CH2NH2 [Option ID = 2715]
Correct Answer :-

CH3NHCH2CH2CH3 [Option ID = 2714]

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What is correct about h-index? [Question ID = 758]
1. Alternative of impact factor [Option ID = 3031]
2. Based on most quoted papers [Option ID = 3030]
3. Quantify scientific productivity [Option ID = 3029]
4. All of these [Option ID = 3032]
Correct Answer :-
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All of these [Option ID = 3032]
The hyperfine electron spin resonance (e.s.r.) spectrum of the benzene radical has how many lines? [Question ID = 748]
1. 12 [Option ID = 2992]
2. 7 [Option ID = 2990]
3. 1 [Option ID = 2991]
4. 6 [Option ID = 2989]
Correct Answer :-

7 [Option ID = 2990]
The energy changes involving the core electrons of an atom or molecule are expressed in which region of the electromagnetic spectrum? [Question ID = 742]
1. Ultraviolet and Visible region [Option ID = 2967]
2. X-ray region [Option ID = 2968]
3. Radiofrequency region [Option ID = 2966]
4. Infra-red region [Option ID = 2965]
Correct Answer :-

X-ray region [Option ID = 2968]
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Find out the expected intensity ratio of M and M+1 signal for the Naphthalene molecular ion [Question ID = 726]
1. 99:1.1 [Option ID = 2903]
2. 1.1:99 [Option ID = 2904]
3. 9:01 [Option ID = 2901]
4. 1:9 [Option ID = 2902]
Correct Answer :-

9:01 [Option ID = 2901]
Cobalt-60 is used in radiation therapy of cancer and can be produced by the bombardment of Cobalt-59 with [Question ID = 692]
1. Alpha particles [Option ID = 2765]
2. Beta particles [Option ID = 2767]
3. Neutrons [Option ID = 2766]
4. Gamma rays [Option ID = 2768]
Correct Answer :-

Neutrons [Option ID = 2766]

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The standard emf of galvanic cell involving 3 moles of electrons in its redox reaction is 0.59 V. The equilibrium constant for the reaction of the cell is- [Question ID = 763]
1. 10¹⁵ [Option ID = 3051]
2. 10³⁰ [Option ID = 3052]
3. 10²⁵ [Option ID = 3049]
4. 10²⁰ [Option ID = 3050]
Correct Answer :-
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10³⁰ [Option ID = 3052]
A characteristic common to polymers that can be made to conduct electricity such as polyacetylene, polypyrrole is: [Question ID = 685]
1. Conjugation throughout the polymeric chain. [Option ID = 2740]
2. A high degree of cross linking [Option ID = 2738]
3. A very low glass transition temperature [Option ID = 2737]
4. Presence of stereogenic centers of the same configuration [Option ID = 2739]
Correct Answer :-

• Conjugation throughout the polymeric chain. [Option ID = 2740]
Impact factor is [Question ID = 768]
1. Ratio between citations and recent citable items publish [Option ID = 3071]
2. All of these [Option ID = 3072]
3. Addition of citations and recent citable items publish [Option ID = 3069]
4. Ratio between recent citable items publish and citations [Option ID = 3070]
Correct Answer :-

Ratio between recent citable items publish and citations [Option ID = 3070]
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On the basis of oxidation-reduction potential, which of the following is most likely to occur? [Question ID = 693]
1. Al(s) + 3NaNO3 (aq) ? 3Na(s) + Al(NO3)3 (aq) [Option ID = 2770]
2. Ca(s) + 2NaNO3 (aq) ? 2Na(s) + Ca(NO3)2 (aq) [Option ID = 2772]
3. Pb(s) + 2LINO3 (aq) ? 2Li (s) + Pb(NO3)2 (aq) [Option ID = 2771]
4. Zn(s) + 2AgNO3 (aq) ? 2Ag(s) + Zn(NO3)2 (aq) [Option ID = 2769]
Correct Answer :-

Zn(s) + 2AgNO3 (aq) ? 2Ag(s) + Zn(NO3)2 (aq) [Option ID = 2769]
How many diastereoisomers are possible for the compound 2, 4-diphenylcyclobutane-1, 3 di carboxylic acids. [Question ID = 725]
1. 6 [Option ID = 2899]
2. 5 [Option ID = 2898]
3. 8 [Option ID = 2900]
4. 4 [Option ID = 2897]
Correct Answer :-

5 [Option ID = 2898]

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An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to- [Question ID = 764]
1. increase in ionic mobility of ions [Option ID = 3055]
2. increase in number of ions [Option ID = 3054]
3. 100% ionization of electrolyte at normal dilution [Option ID = 3056]
4. increase in both i.e. number of ions and ionic mobility of ions. [Option ID = 3053]
Correct Answer :-
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increase in ionic mobility of ions [Option ID = 3055]
The solid state structures of the principal allotropes of elemental boron are made up of which of the following structural units [Question ID = 699]
1. B₄ terahedra [Option ID = 2796]
2. B₆ octahedra [Option ID = 2795]
3. B₈ cubes [Option ID = 2794]
4. B₁₂ icosahedra [Option ID = 2793]
Correct Answer :-

B₁₂ icosahedra [Option ID = 2793]
The molecular geometry of thionyl chloride is best described as [Question ID = 688]
1. T-shaped [Option ID = 2752]
2. Tetrahedral [Option ID = 2751]
3. Trigonal pyramidal [Option ID = 2749]
4. Trigonal planar [Option ID = 2750]
Correct Answer :-

• Trigonal pyramidal [Option ID = 2749]
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In a face-center cubic (FCC) type of crystal lattice, the number of atoms belonging exclusively to each unit cell within the lattice is/are: [Question ID = 754]
1. 2 [Option ID = 3014]
2. 1 [Option ID = 3013]
3. 3 [Option ID = 3015]
4. 4 [Option ID = 3016]
Correct Answer :-

4 [Option ID = 3016]
Among the following, the weakest oxidizing agent is [Question ID = 675]
1. Mg (s) [Option ID = 2698]
2. I₂ (S) [Option ID = 2699]
3. H⁺ (aq) [Option ID = 2700]
4. MnO₄ (aq) [Option ID = 2697]
Correct Answer :-

Mg (s) [Option ID = 2698]

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For a polymer, which of the following statement/s is/are true? [Question ID = 759]
1. Weight average molecular weight is almost always higher than the number average molecular weight [Option ID = 3035]
2. Formation of a polypeptide from its monomers (amino acids) is an example of addition polymerization [Option ID = 3034]
3. All of these [Option ID = 3036]
4. Vinyl polymerization is an example of condensation polymerization. [Option ID = 3033]
Correct Answer :-
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Weight average molecular weight is almost always higher than the number average molecular weight [Option ID = 3035]
Quantum dots are [Question ID = 762]
1. Three dimensional [Option ID = 3048]
2. One dimensional [Option ID = 3046]
3. Two dimensional [Option ID = 3047]
4. Zero dimensional [Option ID = 3045]
Correct Answer :-

Zero dimensional [Option ID = 3045]
The unit of rate constant for a third order reaction is: [Question ID = 749]
1. s^-1 [Option ID = 2993]
2. mol^-1 dm³ s^-1 [Option ID = 2995]
3. mol^-2 dm⁶ s^-1 [Option ID = 2996]
4. mol dm^-3 s^-1 [Option ID = 2994]
Correct Answer :-

mol^-2 dm⁶ s^-1 [Option ID = 2996]
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All the following elements have at least one isotope that is not radioactive EXCEPT [Question ID = 673]
1. Pb [Option ID = 2690]
2. O [Option ID = 2689]
3. Sn [Option ID = 2691]
4. No [Option ID = 2692]
Correct Answer :-

No [Option ID = 2692]
The conditions for a species to follow Bose-Einstein statistics are; [Question ID = 736]
1. Particles are indistinguishable, with no restriction on filling up of energy levels [Option ID = 2944]
2. Particles are indistinguishable, with a restriction on filling up of energy levels [Option ID = 2943]
3. Particles are distinguishable, with a restriction on filling up of energy levels [Option ID = 2941]
4. Particles are distinguishable, with no restriction on filling up of energy levels [Option ID = 2942]
Correct Answer :-

Particles are indistinguishable, with no restriction on filling up of energy levels [Option ID = 2944]

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In the kinetic theory of collisions, the SI unit of collision number, in terms of m (meter) and s (second), is: [Question ID = 761]
1. m^-2s^-1 [Option ID = 3042]
2. m⁴s^-1 [Option ID = 3041]
3. m²s^-1 [Option ID = 3043]
4. None of these [Option ID = 3044]
Correct Answer :-
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None of these [Option ID = 3044]
Correct characteristics of the functional groups of adenine in DNA base pair are [Question ID = 706]
1. Both N(3) and C(6)NH2 are hydrogen bond donors. [Option ID = 2824]
2. N(3) is a hydrogen bond acceptor and C(6)NH2 is a hydrogen bond donor. [Option ID = 2821]
3. Both N(3) and C(6)NH2 are hydrogen bond acceptors [Option ID = 2823]
4. N(1) is a hydrogen bond acceptor and C(6)NH2 is a hydrogen bond donor. [Option ID = 2822]
Correct Answer :-

N(1) is a hydrogen bond acceptor and C(6)NH2 is a hydrogen bond donor. [Option ID = 2822]
The carbon monoxide molecule has an internuclear distance of 1.13 Angstroms. What is the moment of Inertia of this molecule? [Question ID = 740]
1. 21.6 X 10^-47 kgm² [Option ID = 2960]
2. 14.5 X 10^-47 kgm² [Option ID = 2957]
3. 14.5 X 10⁴⁷ kgm² [Option ID = 2958]
4. 1.45 X 10^-47 kgm² [Option ID = 2959]
Correct Answer :-

14.5 X 10^-47 kgm² [Option ID = 2957]
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Which of the following represent/s non-linear optical technique? [Question ID = 744]
1. Second Harmonic generation [Option ID = 2974]
2. Two-photon photoluminescence [Option ID = 2975]
3. Four-wave mixing [Option ID = 2973]
4. All of these [Option ID = 2976]
Correct Answer :-

All of these [Option ID = 2976]
Which of the following does not affect the intensity of spectral lines of a sample? [Question ID = 743]
1. Path length of a sample [Option ID = 2972]
2. Population of energy states [Option ID = 2970]
3. Heisenberg's Uncertainty principle [Option ID = 2971]
4. Concentration of a sample [Option ID = 2969]
Correct Answer :-

Heisenberg's Uncertainty principle [Option ID = 2971]

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Find out the major product of the following reaction [Question ID = 716]
1. 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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