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Chemistry PYQ

CSIR NET Chemistry June 2016 — 82 questions

Chemical Sciences, June 2016: every question we hold for this paper, with options, the answer where the source gives one, and an explanation where available.

  1. Q1 — Which of the following react(s) with AsF₅ in liquid BrF₃ ? · Acid and Bases
  2. Q2 — Consider the following reactions: (A) NOCl + Sn N₂O₄ (B) NOCl + AgNO₃ → (C) NOCl + BrF₃ → (D) NOCl + SbCl₅ → · Acids and Bases
  3. Q4 — Decomposition temperature of CaCO₃ in thermogravimetric analysis will be highest in dynamic atmosphere of: · Analytical Chemistry
  4. Q5 — Identify correct statements for the EPR spectrum of VO(acac)₂ [with square pyramidal geometry at vanadium] at · Inorganic Spectroscopy
  5. Q6 — The correct statements about conformations X and Y of 2-butanone are (X) (Y) (A) X is more stable than Y (B) · General Organic Chemistry
  6. Q8 — The major products A and B formed in the following reaction sequence are + heat (A) hν (B) · Pericyclic Reactions
  7. Q9 — The major product formed in the following reaction is: EtOH · Reagents, Reaction Mechanisms & Named Reactions
  8. Q10 — The correct reagent combination to effect the following reaction is: → · Reagents, Reaction Mechanisms & Named Reactions
  9. Q13 — Experimentally determined rate law for the chemical reaction, 2NO₂F → 2NO₂ + F₂ is R = k[NO₂F] The rate · Chemical Kinetics
  10. Q15 — In a potentiometric titration, the end point is characterised by · Electrochemistry
  11. Q16 — The point group obtained by adding symmetry operation σh to the point group C₄ is · Group Theory
  12. Q17 — The character table for the D₄ point group is provided below: For this point group, the correct statement · Group Theory
  13. Q22 — Decomposition temperature of CaCO₃ in thermogravimetric analysis will be highest in dynamic atmosphere of: · Analytical Chemistry
  14. Q23 — In the absence of bound globin chain, heme group on exposure to O₂ gives the iron-oxygen species · Bioinorganic Chemistry
  15. Q24 — Match the metal given in Column-A with its medicinal use as a compound in Column-B Correct match is · Bioinorganic Chemistry
  16. Q25 — Correct combination of number and size of rings present in a metal ion-porphine complex (including metal ion · Bioinorganic Chemistry
  17. Q26 — In human body cis- platinhydrolyzes to diaqua complex and modifies the DNA structure by binding to · Bioinorganic Chemistry
  18. Q27 — Correct combination for π and π* orbitals in B₂ molecule is · Chemical Bonding
  19. Q28 — The correct shape of [TeF₅]⁻ ion on the basis of VSEPR theory is · Chemical Bonding
  20. Q29 — The number of 3c-2e bonds present in Al (BH₄)₃ is- · Chemical Bonding
  21. Q30 — The expected H-H-H bond angle in [H₃]⁺is · Chemical Bonding
  22. Q32 — The numbers of triangular faces in square antiprism, icosahedron and tricapped trigonal prism (capped on · Chemical Bonding
  23. Q33 — [NiII L₆]n+ or n- shows absorption bands at 8500, 15400, and 26000 cm⁻¹ whereas [NiII L'₆]n+ or n- at 10750 · Coordination Chemistry
  24. Q34 — The number of microstates present in ³F-term is · Coordination Chemistry
  25. Q35 — Chelate effect is · Coordination Chemistry
  26. Q36 — The lowest energy term for the d⁶configuration is · Coordination Chemistry
  27. Q37 — The first excited state of hydrogen molecule is · Coordination Chemistry
  28. Q38 — Complex [Cr(bipyridyl)₃]³⁺, shows red phosphorescence due to transition · Coordination Chemistry
  29. Q39 — The complex that shows orbital contribution to the magnetic moment, is · Coordination Chemistry
  30. Q40 — Paramagnetic susceptibility of the order of 10⁻⁶ cm³mol⁻¹ observed for KMnO₄ is due to- · Coordination Chemistry
  31. Q41 — The room temperature magnetic moment (in BM) for a monomeric Cu (II) complex is greater than 1.73. This may · Coordination Chemistry
  32. Q42 — Identify correct statements for the EPR spectrum of VO(acac)₂ [with one pyramidal geometry at vanadium] at 77 · Inorganic Spectroscopy
  33. Q43 — The numbers of lines shown by the BH₃ part of the molecule Ph₃ P. ¹¹ BH₃ in the ¹ H and ¹¹ B NMR spectra are · Inorganic Spectroscopy
  34. Q44 — To record Mossbauer spectrum of Fe containing samples, a source 'X' is used. X after a nuclear transformation · Inorganic Spectroscopy
  35. Q45 — For monoionic complex [UO₂(NO₃)₃]⁻ the correct coordination number and geometry respectively, are · Lanthanides and Actinides
  36. Q46 — The g values for Ce³⁺ (4f¹) and Pr³⁺ (4f²) are, respectively · Lanthanides and Actinides
  37. Q47 — The numbers of P-S and P-P bonds in the compound P₄ S₃ are, respectively · Main Group Elements
  38. Q49 — In the ¹H NMR spectrum of myrtenal, the two methyl groups are expected to display signals at (chemical shift · Organic Spectroscopy
  39. Q51 — The frontier orbital interactions involved in the formation of the carbocation intermediate in the reaction · Pericyclic Reactions
  40. Q52 — The following transformation proceeds through two consecutive electrocyclic processes, which are · Pericyclic Reactions
  41. Q55 — The correct match for the following transformations P-S with the processes I-IV is Reactions: (P) + H₂C=CH₂ · Photochemical Reactions
  42. Q56 — If the rates of a reaction are R₁ and R₂ at concentrations C₁ and C₂ of a reactant respectively, the order of · Chemical Kinetics
  43. Q57 — Experimentally determined rate law for the chemical reaction, 2NO₂F → 2NO₂ + F₂ is R = k[NO₂F] The rate · Chemical Kinetics
  44. Q58 — For the chemical reaction in aqueous solution, CH₂ClCOO⁻ + OH⁻ → CH₂OHCOO⁻ + Cl⁻ the correct statement is · Chemical Kinetics
  45. Q59 — If experimentally observed rate constant is greater than the maximum value of rate constant obtained using · Chemical Kinetics
  46. Q60 — Half-life t1/2 for a third order reaction 3C → products, where C₀ is the initial concentration of C, will be · Chemical Kinetics
  47. Q62 — A physical observable, 'x', appears with the probability distribution e(-|2x-12|) the average of x would be · Data Analysis
  48. Q63 — In a potentiometric titration, the end point is characterised by · Electrochemistry
  49. Q64 — The standard electrode potential E₀ at a fixed temperature and in a given medium is dependent on · Electrochemistry
  50. Q65 — Two aqueous 1 : 1 electrolyte systems A and B are at different temperatures TA and TB and CA and CB · Electrochemistry
  51. Q66 — The symmetry point group of the most stable geometry of the following molecule Cl(H)C=C=C(H)Cl is · Group Theory
  52. Q67 — The character table of C3v point group is provided below, along with an additional reducible representation · Group Theory
  53. Q68 — In an NMR spectrometer containing a 2.5 T magnet, Larmor precession frequency of ¹H is 100 MHz. The · Molecular Spectroscopy
  54. Q69 — Upon application of a weak magnetic field, a line in the microwave absorption spectrum of rigid rotor splits · Molecular Spectroscopy
  55. Q70 — The condensation of hydroxy acid produces a polyster with the probability of linkage at both ends being p · Polymer Chemistry
  56. Q71 — The Hermitian conjugate of operator d/dx, called (d/dx), is actually equal to · Quantum Chemistry
  57. Q72 — The eigenfunctions of the Hamiltonian H (H = T + V) of a harmonic oscillator are (where T and V are kinetic · Quantum Chemistry
  58. Q75 — Average value of momentum for the ground state of a particle in a 1-d box is zero because · Quantum Chemistry
  59. Q76 — For a hermitian operator A, which does NOT commute with the Hamiltonian H, let ψ₁ be an eigenfunction of A · Quantum Chemistry
  60. Q77 — The simultaneous eigen functions of angular momentum operators L² and Lz are · Quantum Chemistry
  61. Q78 — The ionization energy of hydrogen atom in its ground state is approximately 13.6 eV. The potential energy of · Quantum Chemistry
  62. Q79 — In simple molecular orbital theory of hydrogen molecule, bonding σg and anti-bonding σu molecular orbitals · Quantum Chemistry
  63. Q80 — The correct normalized wave function for one of the sp² hybrid orbitals is · Quantum Chemistry
  64. Q81 — The orbital degeneracy of the level of a one-electron atomic system with Z=5 and energy =-13.6 eV, is · Quantum Chemistry
  65. Q82 — If we write a normalized wave function ψ=A, then φ is also normalized when · Quantum Chemistry
  66. Q84 — The spatial part of an excited state b ³Σu⁺ of hydrogen molecule is proportional to [1σg(1)σu(2) - · Quantum Chemistry
  67. Q85 — Which of the functions below is a common eigenfunction of d/dx and (d²)/(dx²) operators? · Quantum Chemistry
  68. Q86 — The number of degenerate spatial orbitals of a hydrogen-like atom with principal quantum number n = 6 is · Quantum Chemistry
  69. Q87 — If [A, B] = 0 and [A, C] = 0, then which of the following necessarily holds: [A, B and C are operators] · Quantum Chemistry
  70. Q88 — The electronic transition energy from π₁ → π₂ in propenyl radical is 4.8 eV. Within the framework of Huckel · Quantum Chemistry
  71. Q89 — The transition moment integral for a rotational transition between J=1; MJ=0 and J=2; MJ=0 states for a · Quantum Chemistry
  72. Q90 — One of the correct normalized sp² hybrid orbitals is · Quantum Chemistry
  73. Q92 — A particle is in a state φ=ψ₁+3ψ₂ where ψ₁ and ψ₂ are eigenfunctions of the Hamiltonian of the particle with · Quantum Chemistry
  74. Q94 — The hydrogen atomic orbital given by Nr² e^(-r)/(3a₀) (3cos ²θ-1) represents · Quantum Chemistry
  75. Q96 — In a cubic crystal, the plane [100] is equally inclined to the planes · Solid State Chemistry
  76. Q98 — The single – partition translational partition function (f) for an ideal gas in a fixed volume V depends on · Statistical Thermodynamics
  77. Q100 — When river water containing colloidal clay flows into the sea, the major cause of silting is · Surface Chemistry
  78. Q101 — ((∂ H)/(∂ P))T has the dimension of · Thermodynamics
  79. Q102 — For an ideal gas at 300 K · Thermodynamics
  80. Q103 — Phase diagram of a compound is shown below The slopes of the lines OA, AC and AB are tan (π)/4, tan (π)/6 and · Thermodynamics
  81. Q106 — The major product formed in the following reaction sequence is: 3. H₃O⁺ · Reagents, Reaction Mechanisms & Named Reactions
  82. Q107 — At pH 10, tryptophan exists as · Natural Products

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