4AB › Chemistry PYQ › CSIR-NET › December 2015

1. Q1 — Correct statement for coulometry is · Analytical Chemistry
2. Q2 — The calibration curve in spectrofluorimetric analysis becomes non-linear when · Analytical Chemistry
3. Q3 — The correct statement among the following is · Chemical Bonding
4. Q4 — D-Mannose upon refluxing in acetone with CuSO₄ and H₂ SO₄ gives · Natural Products
5. Q5 — The correct match for the compounds in column A with the description in column B is Column A Column B (P) (X) · Natural Products
6. Q6 — The major product formed in the following reaction is · Reagents, Reaction Mechanisms & Named Reactions
7. Q7 — The structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
8. Q8 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
9. Q9 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
10. Q10 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
11. Q11 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
12. Q12 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
13. Q13 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
14. Q14 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
15. Q15 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
16. Q16 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
17. Q17 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
18. Q18 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
19. Q19 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
20. Q20 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
21. Q21 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
22. Q22 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
23. Q23 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
24. Q24 — The major structures of A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions
25. Q25 — The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions
26. Q26 — For the following reaction, A k₋₁k₁⇌ 2 B; B k₂ C (d[B])/dt is given by · Chemical Kinetics
27. Q27 — In Kohlrausch law, Λm=Λmo-κ √(c), Λmo and κ · Electrochemistry
28. Q28 — Given that Eo (Cl₂/Cl⁻)=1.35 V and Ksp(AgCl)=10⁻¹⁰ at 25°C, E₀ corresponding to the electrode reaction · Electrochemistry
29. Q29 — The standard EMF of the cell Pt, H₂(g) | HCl(soln.) | AgCl(s), Ag(s) · Electrochemistry
30. Q30 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Gaseous State
31. Q31 — The molecule with the smalllest rotational constant (in the microwave spectrum) among the following is · Molecular Spectroscopy
32. Q32 — For a simple cubic crystal lattice, the angle between the [201] plane and the xy plane is · Solid State Chemistry
33. Q33 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Statistical Thermodynamics
34. Q34 — A reversible expansion of 1.0 mol of an ideal gas is carried out from 1.0 L to 4.0 L under isothermal · Thermodynamics
35. Q35 — The temperature-dependence of the vapour pressurse of solid A can be represented by log p=10.0-1800/T, and · Thermodynamics
36. Q36 — The non-spontaneous process among the following is · Thermodynamics
37. Q37 — Correct statement for coulometry is · Analytical Chemistry
38. Q38 — Pick the correct statements about Atomic Absorption Spectrometry (AAS) from the following: A. Hg lamp is not · Analytical Chemistry
39. Q39 — The calibration curve in spectrofluorimetric analysis becomes non-linear when · Analytical Chemistry
40. Q40 — The biological functions of cytochrome P₄₅₀ and myoglobin are, respectively · Bioinorganic Chemistry
41. Q41 — Deoxy-hemocyanin is · Bioinorganic Chemistry
42. Q42 — The resonance Raman stretching frequency (νO-O in cm⁻¹) of O₂, is 1580. The νO-O for O₂ in bound · Bioinorganic Chemistry
43. Q43 — Match the metalloprotein in Column-A with its biological function and metal centre in Column-B The correct · Bioinorganic Chemistry
44. Q44 — The structures of XeF₂ and XeO₂F₂ respectively are · Chemical Bonding
45. Q45 — The molecule C₃ O₂ has a linear structure. This compound has · Chemical Bonding
46. Q46 — Among the following, species expected to show fluxional behaviour are · Chemical Bonding
47. Q47 — The correct statement among the following is · Chemical Bonding
48. Q48 — The number of lone pair(s) of electrons on the central atom in [BrF₄]⁻, XeF₆ and [SbCl₆]⁻are respectively · Chemical Bonding
49. Q49 — The ground state electronic configuration of C₂, using all electron is · Chemical Bonding
50. Q50 — The term symbol for the first excited state of Be with the electronic configuration 1s²2s¹3s¹ is. · Coordination Chemistry
51. Q51 — The oxidizing power of [CrO₄]²⁻, [MnO₄]²⁻ and [FeO₄]²⁻ follows the order · Coordination Chemistry
52. Q52 — Using crystal field theory, identify from the following complex ions that shows same μeff (spin only) values · Coordination Chemistry
53. Q53 — The correct statement for Mn-O bond lengths in [Mn (H₂ O)₆]²⁺, is · Coordination Chemistry
54. Q54 — Identify the complex ions in sequential order when ferroin is used as an indicator in the titration of · Coordination Chemistry
55. Q55 — The formation constant for the complexation of M⁺(M=Li, Na, K and Cs) with cryptand, C₂₂₂ follows the order · Coordination Chemistry
56. Q56 — [MnO₄]⁻is deep purple in colour whereas [ReO₄]⁻is colourless. This is due to greater energy required for · Coordination Chemistry
57. Q57 — The correct statement about the substitution reaction of [Co(CN)₅Cl]³⁻ with OH⁻ to give [Co(CN)₅(OH)]³⁻ is, · Coordination Chemistry
58. Q58 — Aqueous Cr²⁺ effects one electron reduction of [Co (NH₃)₅ Cl]²⁺ giving compound Y. Compound Y undergoes rapid · Coordination Chemistry
59. Q59 — Choose the correct statements about Tanabe-Sugano diagrams · Coordination Chemistry
60. Q60 — Three electronic transitions at 14900, 22700 and 34400 cm⁻¹ are observed in the absorption spectrum of · Coordination Chemistry
61. Q61 — Possible term symbol(s) of the excited states of Na atom with the electronic configuration [1s²2s²2p⁶3p¹] · Coordination Chemistry
62. Q62 — The symmetry-allowed atomic transition among the following is · Coordination Chemistry
63. Q63 — The metallic radii are abnormally high for which of the following pairs? · Lanthanides and Actinides
64. Q64 — Which of the following statements are TRUE for the lanthanides? (A) the observed magnetic moment of Eu at · Lanthanides and Actinides
65. Q65 — The order of increasing Bronsted acidity for boron hydrides is · Main Group Elements
66. Q66 — The ring size and the number of linked tetrahedral present in [Si₆O₁₈]¹²⁻ are, respectively · Main Group Elements
67. Q67 — Consider the following reaction : N₃P₃Cl₆ + 6 HNMe₂ → N₃P₃Cl₃(NMe₂)₃ + 3 Me₂NH.HCl (A) The number of possible · Main Group Elements
68. Q68 — The reaction of BCl₃, with NH₄Cl gives product A which upon reduction by NaBH₄ gives product B. Product B · Main Group Elements
69. Q69 — Protonated form of ZSM-5 catalyzes the reaction of ethene with benzene to produce ethylbenzene. The correct · Main Group Elements
70. Q70 — Spin motion of which of the following gives magnetic moment · Nuclear Chemistry
71. Q71 — Identify radioactive capture from the following nuclear reactions: · Nuclear Chemistry
72. Q72 — The W-W bond order in [W (η⁵-C₅ H₅)(μ-Cl)(CO)₂]₂ is · Organometallic Compounds
73. Q73 — For the reaction of [Fe (η⁵-C₅ H₅) (CH₃)(CO)₂] with PMe₃, the main intermediate is · Organometallic Compounds
74. Q74 — [(eta³-mathrmC₃H₅)mathrmMn(CO)₄] shows fluxional behavior. The ¹mathrmH NMR spectrum of this compound when it · Organometallic Compounds
75. Q75 — Using Wade's rules predict the structure type of [C₂ B₅ H₇] · Organometallic Compounds
76. Q76 — For uranocene, the correct statement(s) is/are · Organometallic Compounds
77. Q77 — The final products of the reaction of carbonyl metalates [V(CO)₆]⁻ and [Co(CO)₄]⁻ with H₃ PO₄ respectively · Organometallic Compounds
78. Q78 — The number of valence electrons provided by [Ru(CO)₃] fragment towards cluster bonding is · Organometallic Compounds
79. Q79 — The intermediate and the final major product of photolysis of Z (Z) From the following are (A) (B) (C) (D) · Organometallic Compounds
80. Q80 — Reaction of [Mn₂(CO)₁₀], with I₂, results in A without loss of CO. Compound A, on heating of 120° C loses a · Organometallic Compounds
81. Q81 — The approximate positions of vco bands (cm⁻¹) in the solid-state infrared spectrum and the Fe-Fe bond order · Organometallic Compounds
82. Q82 — Correct order of M-C bond length of metallocenes (a-c) · Organometallic Compounds
83. Q83 — For fluxional Fe(CO)₅ (structure given below) in solution, the exchange of numbered CO groups will be between · Organometallic Compounds
84. Q84 — Heating a sample of [ (η⁵-C₅ H₅) Mo(CO)₃]₂ results in the formation of [ (η⁵-C₅ H₅) Mo(CO)₂] with elimination · Organometallic Compounds
85. Q85 — The structure of the compounds that matches the 1H ~ NMR data given below is ¹ H ~ NMR ~ DMSO-d₆: δ 7.75 dd · Organic Spectroscopy
86. Q86 — Correctly matched structure and carbonyl stretching frequency set is COLUMN - A COLUMN -B (P) (X) 1750 cm⁻¹ · Organic Spectroscopy
87. Q87 — The number of chemical shift non-equivalent protons expected in 1H ~ N M R spectrum of α- pinene is α-pinene · Organic Spectroscopy
88. Q88 — In the mass spectrum of 1,2-dichloroethane, approximate ratio of peaks at m / z values 98, 100, 102 will be · Organic Spectroscopy
89. Q89 — The major product formed by photochemical reaction of (2E, 4Z, 6E)-decatriene is · Pericyclic Reactions
90. Q90 — The following transformation involves sequential · Pericyclic Reactions
91. Q91 — A concerted [1, 3]-sigmatropic rearrangement took place in the reaction shown below. The structure of the · Pericyclic Reactions
92. Q92 — The correct statement about the following reaction is that · Photochemical Reactions
93. Q93 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Atomic and Molecular Term Symbol
94. Q94 — According to the transition state theory, one of the vibrations in the activated complex is a loose · Chemical Kinetics
95. Q95 — vmax and Km for an enzyme catalyzed reaction are 2.0 × 10⁻³ Ms⁻¹ and 1.0 × 10⁻⁶ M, respectively. The rate of · Chemical Kinetics
96. Q96 — The first order rate constant for a unimolecular gas phase reaction A → products that follows Lindemann · Chemical Kinetics
97. Q97 — The concentration of a reactant R varies with time for two different reactions as shown in the following · Chemical Kinetics
98. Q98 — If the rates of a reaction are R₁ and R₂ at concentrations C₁ and C₂ of a reactant respectively, the order of · Chemical Kinetics
99. Q99 — In Kohlrausch law, Λm=Λm⁰-κ √(c), Λmo and κ · Electrochemistry
100. Q100 — The concentration of a MgSO₄ solution having the same ionic strength as that of a 0.1 M Na₂SO₄ solution is · Electrochemistry
101. Q101 — Given that E° (Cl₂ / Cl⁻)=1.35 V and Ksp(AgCl)=10⁻¹⁰ at 25° C, E⁰ corresponding to the electrode reaction 1/2 · Electrochemistry
102. Q102 — The standard EMF of the cell Pt, H.g HCl soln. AgCls, Ag(s) · Electrochemistry
103. Q103 — The product C₂x · σxy (C₂x is the two-fold rotation axis around the x-axis and σxy is the xy mirror plane) is · Group Theory
104. Q104 — IR active normal modes of methane belong to the irreducible representation: · Group Theory
105. Q105 — The molecule diborane belongs to the symmetry point group · Group Theory
106. Q106 — The irreducible representations of C2 h are Ag, Bg, Au and Bu. The Raman active modes of trans- 1, 3 · Group Theory
107. Q107 — If the reduced mass of a diatomic molecule is doubled without changing its force constant, the vibrational · Molecular Spectroscopy
108. Q108 — The molecule with the smallest rotational constant (in the microwave spectrum) among the following is · Molecular Spectroscopy
109. Q109 — The spectroscopic technique that can distinguish unambiguously between trans-1, 2 dichloroethylene and cis-1 · Molecular Spectroscopy
110. Q110 — The vibrational frequency of a homo-nuclear diatomic molecule is v. The temperature at which the population · Molecular Spectroscopy
111. Q111 — The ¹ H NMR frequency at 1.0T is 42.4 MHz. If the gyromagnetic ratios of ¹ H and ¹³ C are 27 × 10⁷ and 6.75 × · Molecular Spectroscopy
112. Q112 — The correct form for a simple Langmuir isotherm is · Polymer Chemistry
113. Q113 — The correct expression for the product ((Mn) · ((Mw))) [ ((Mn... and ((Mw.. are the number average and weight · Polymer Chemistry
114. Q114 — The average end-to-end distance of a random coil polymer of 10⁶ monomers (in units of segment length) is · Polymer Chemistry
115. Q115 — For a simple cubic crystal, X-ray diffraction shows intense reflections for angles θ₁ and θ₂ which are · Solid State Chemistry
116. Q116 — Though a constant shift of energy levels of a system changes the partition function, the properties that do · Statistical Thermodynamics
117. Q117 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Statistical Thermodynamics
118. Q118 — Stability of lyophobic dispersions is determined by · Surface Chemistry
119. Q119 — The value of Δ U-Δ H for the reaction Fe₂ O₃(s)+3 C(s) → 2 Fe(s)+3 CO(g) is · Thermodynamics
120. Q120 — If the pressure p (system) is greater than the p (surroundings), then · Thermodynamics
121. Q121 — Δ H of a reaction is equal to slope of the plot of · Thermodynamics
122. Q122 — A reversible expansion of 1.0 mol of an ideal gas is carried out from 1.0 L to 4.0 L under isothermal · Thermodynamics
123. Q123 — The temperature-dependence of the vapour pressure of solid A can be represented by log p=10.0-1800/T, and · Thermodynamics
124. Q124 — The non-spontaneous process among the following is · Thermodynamics

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