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. Q28 — Given that Eo (Cl₂/Cl⁻)=1.35 V and Ksp(AgCl)=10⁻¹⁰ at 25°C, E₀ corresponding to the electrode reaction · Electrochemistry
5. Q29 — The standard EMF of the cell Pt, H₂(g) | HCl(soln.) | AgCl(s), Ag(s) · Electrochemistry
6. Q30 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Gaseous State
7. 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
8. Q39 — The calibration curve in spectrofluorimetric analysis becomes non-linear when · Analytical Chemistry
9. Q48 — The number of lone pair(s) of electrons on the central atom in [BrF₄]⁻, XeF₆ and [SbCl₆]⁻are respectively · Chemical Bonding
10. Q67 — Consider the following reaction : N₃P₃Cl₆ + 6 HNMe₂ → N₃P₃Cl₃(NMe₂)₃ + 3 Me₂NH.HCl (A) The number of possible · Main Group Elements
11. Q76 — For uranocene, the correct statement(s) is/are · Organometallic Compounds
12. Q87 — The number of chemical shift non-equivalent protons expected in ¹H NMR spectrum of α-pinene is α-pinene · Organic Spectroscopy
13. Q88 — In the mass spectrum of 1,2-dichloroethane, approximate ratio of peaks at m / z values 98, 100, 102 will be · Organic Spectroscopy
14. Q93 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Atomic and Molecular Term Symbol
15. Q96 — The first order rate constant for a unimolecular gas phase reaction A → products that follows Lindemann · Chemical Kinetics
16. 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
17. Q100 — The concentration of a MgSO₄ solution having the same ionic strength as that of a 0.1 M Na₂SO₄ solution is · Electrochemistry
18. 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
19. Q104 — IR active normal modes of methane belong to the irreducible representation: · Group Theory
20. Q105 — The molecule diborane belongs to the symmetry point group · Group Theory
21. Q106 — The irreducible representations of C2 h are Ag, Bg, Au and Bu. The Raman active modes of trans- 1, 3 · Group Theory
22. Q107 — If the reduced mass of a diatomic molecule is doubled without changing its force constant, the vibrational · Molecular Spectroscopy
23. Q108 — The molecule with the smallest rotational constant (in the microwave spectrum) among the following is · Molecular Spectroscopy
24. Q109 — The spectroscopic technique that can distinguish unambiguously between trans-1, 2 dichloroethylene and cis-1 · Molecular Spectroscopy
25. Q110 — The vibrational frequency of a homo-nuclear diatomic molecule is v. The temperature at which the population · Molecular Spectroscopy
26. 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
27. Q112 — The correct form for a simple Langmuir isotherm is · Polymer Chemistry
28. Q113 — The correct expression for the product ((Mn) · ((Mw))) [ ((Mn... and ((Mw.. are the number average and weight · Polymer Chemistry
29. Q115 — For a simple cubic crystal, X-ray diffraction shows intense reflections for angles θ₁ and θ₂ which are · Solid State Chemistry
30. Q116 — Though a constant shift of energy levels of a system changes the partition function, the properties that do · Statistical Thermodynamics
31. Q117 — The standard deviation of speed (σc) for Maxwell's distribution satisfies the relation · Statistical Thermodynamics
32. 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
33. Q121 — Δ H of a reaction is equal to slope of the plot of · Thermodynamics
34. Q125 — For a simple cubic crystal lattice, the angle between the [2 0 1] plane and the xy plane is · Solid State Chemistry

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