4AB › Chemistry PYQ › CSIR NET › December 2016

1. Q1 — For the reaction, HX(aq) + H₂O(l) gives H₃O⁺ + X⁻ the highest value of [X⁻], when X⁻ is · Acid and Bases
2. Q4 — The numbers of triangular faces in square antiprism, icosahedron and tricapped trigonal prism (capped on · Chemical Bonding
3. Q5 — The expected number of ¹⁹F NMR spectral lines, including satellites, for [XeF₅]⁻ is [Abundance of ¹²⁹Xe · Inorganic Spectroscopy
4. Q14 — ¹H NMR spectrum of an organic compound recorded on a 500 MHz spectrometer showed a quartet with line · Organic Spectroscopy
5. Q22 — The highest molecular orbitals for an excited electronic configuration of the oxygen molecule are [1 πg]¹ [3 · Atomic and Molecular Term Symbol
6. Q23 — According to the transition state theory, the plot with slope equal to (Δ H)/R is · Chemical Kinetics
7. Q30 — The rotational constant and the fundamental vibrational frequency of HBr are, respectively, 10 cm⁻¹ and 2000 · Molecular Spectroscopy
8. Q31 — In a 200 MHz NMR spectrometer, a molecule shows two doublets separated by 2 ppm. The observed coupling · Molecular Spectroscopy
9. Q34 — The equation of state for one mole of a gas is given by P(V-b)=RT, where b and R are constants. The value of · Thermodynamics
10. Q71 — 'H NMR spectrum of an organic compound recorded on a 500 MHz spectrometer showed a quartet with line · Organic Spectroscopy
11. Q73 — ¹ H ~ NMR spectrum of a mixture of benzene and acetonitrile shows two singlets of equal integration. The · Organic Spectroscopy
12. Q77 — For a reaction with an activation energy of 49.8 kJ mol⁻¹, the ratio of the rate constants at 600 K and 300 · Chemical Kinetics
13. Q81 — The rate of an acid-catalyzed reaction in aqueous solution follows the rate equation r=k [X⁺] [Y²⁻] [H⁺] If · Chemical Kinetics
14. Q82 — If the pre-exponential factor in Arrhenius equation is 1.6 × 10¹² s⁻¹, the value of the rate constant at · Chemical Kinetics
15. Q83 — In kinetic study of a chemical reaction, slopes are drawn at different times in the plot of concentration of · Chemical Kinetics
16. Q84 — Photochemical decomposition of HI takes place with the following mechanism HI+hv (Ia) → H+I H+HI k₁ H₂+I · Chemical Kinetics
17. Q85 — In a enzyme catalyzed reaction: E+S k₋₁k₁⇌ ES k₂ E+P k₂=3.42 × 10⁴ s⁻¹. If [E]₀=1.0 × 10⁻² mol dm⁻³, the · Chemical Kinetics
18. Q86 — Arrhenius equations for two chemical reactions are: k₁=A₁ e-E₁ / RT, k₂=A₂ e-E₂ / RT. If E₁>E₂ then at a · Chemical Kinetics
19. Q88 — If the specific conductances of a sparingly soluble (1:1) salt (MW =200 g mol⁻¹) in its saturated aqueous · Electrochemistry
20. Q90 — The ionic strength of a solution containing 0.008 M AlCl₃ and 0.005 M KCl is · Electrochemistry
21. Q91 — Given : (i) Zn+4 NH₃ → Zn (NH₃)₄ ²⁺+2 e, E⁰=1.03 V (ii) Zn → Zn²⁺+2 e, E°=0.763 V the formation of the · Electrochemistry
22. Q92 — The molecule that possesses symmetry S₄ element is · Group Theory
23. Q93 — For H₂O molecule, the electronic transition from the ground state to an excited state of B₁ symmetry is · Group Theory
24. Q95 — ¹ H NMR spectrum of an organic compound recorded on a 500 MHz spectrometer showed a quartet with line · Molecular Spectroscopy
25. Q96 — Vibrations of diatomic molecules are usually modelled by a harmonic potential. If the potential is given by · Molecular Spectroscopy
26. Q97 — The transition that belongs to the Lyman series in the hydrogen-atom spectrum is · Molecular Spectroscopy
27. Q98 — The rotational constant and the fundamental vibrational frequency of HBr are, respectively, 10 cm⁻¹ and 2000 · Molecular Spectroscopy
28. Q99 — Among the following, both microwave and rotational Raman active molecule is · Molecular Spectroscopy
29. Q100 — In a 200 MHz NMR spectrometer, a molecule shows two doublets separated by 2 ppm. The observed coupling · Molecular Spectroscopy
30. Q102 — Each void in a two dimensional hexagonal close-packed layer of circles is surrounded by · Solid State Chemistry
31. Q104 — The weight of configuration with two ups and three down spins in a system with five spin 1/2 particles is · Statistical Thermodynamics
32. Q105 — Partition function of a one - dimensional oscillator having equispaced energy level with energy spacing equal · Statistical Thermodynamics
33. Q109 — The parameter which always decreases during a spontaneous process at constant S and V, is · Thermodynamics
34. Q110 — Triple point pressure of substances A, B, C and D are 0.2,0.5,0.8 and 1.2 bar, respectively. The substance · Thermodynamics
35. Q112 — The partial derivative ((∂ T)/(∂ V))P is equal to · Thermodynamics

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