4AB › Chemistry PYQ › CSIR NET › June 2012

1. Q1 — In the reactions (A) and (B), n(H₂O) + Cl⁻ → [Cl(H₂O)n]⁻..... (A) (H₂O)₆ + Mg²⁺ → [Mg(H₂O)₆]²⁺...... (B) · Acid and Bases
2. Q2 — The size of the d orbitals in Si, P, S and Cl follows the order. · Chemical Bonding
3. Q4 — The decreasing order of dipole moment of molecules is · Chemical Bonding
4. Q8 — Among the following, the amino acid which is basic in nature is: · Natural Products
5. Q30 — The decreasing order of dipole moment of molecules is · Chemical Bonding
6. Q31 — The nucleophilic attack on olefins under mild conditions: · Coordination Chemistry
7. Q54 — The number of signals that appear in the broadband decoupled ¹³C NMR spectrum of phenanthrene and anthracene · Organic Spectroscopy
8. Q55 — In the 400 MHz, ¹ H NMR spectrum of organic compound exhibited a doublet. The two lines of the doublet are at · Organic Spectroscopy
9. Q71 — Among the following, the CORRECT statement is: · Group Theory
10. Q74 — For a diatomic molecule AB, the energy for the rotational transition from J=0 to J=1 state is 3.9 cm⁻¹. The · Molecular Spectroscopy
11. Q75 — For the vibrational Raman spectrum of a homonuclear diatomic molecule, the selection rule under harmonic · Molecular Spectroscopy
12. Q76 — The following data were obtained from the vibrational fine structure in the vibronic spectrum of a diatomic · Molecular Spectroscopy
13. Q78 — During the addition polymerization, the reaction proceeds via · Polymer Chemistry
14. Q79 — The number-average molar mass (MN) and weight-average molar mass (Mw) of a polymer are obtained respectively · Polymer Chemistry
15. Q81 — For hydrogen-like atom with a nuclear charge Z, the energy of orbital with principal quantum number 'n' · Quantum Chemistry
16. Q82 — The average value of the radius <r> in the 1 s state of the hydrogen atom is (a₀ is Bohr radius) · Quantum Chemistry
17. Q83 — The probability of finding the particle in a one dimensional box of length 'L' in the region between L/4 and · Quantum Chemistry
18. Q84 — A particle in three dimensional cubic box of length L has energy of (14 h²)/(8 mL²). The degeneracy of the · Quantum Chemistry
19. Q85 — The following are the three statements about perturbation theory (A) Second order perturbation correction to · Quantum Chemistry
20. Q87 — For H₂ molecule in the excited state σg¹ σu¹ spin part of the triplet state with ms=0 is proportional to · Quantum Chemistry
21. Q88 — How many atoms are there in an element packed in a fcc structure · Solid State Chemistry
22. Q90 — The lattice parameter of an element stabilized in a fcc structure is 4.04 Å. The atomic radius of the element · Solid State Chemistry
23. Q92 — The electric-dipole allowed transition among the following is · Statistical Thermodynamics
24. Q94 — Dispersion of a solid in a liquid, a liquid in a gas and a liquid in a liquid are respectively known as · Surface Chemistry
25. Q95 — A dilute silver nitrate solution is added to a slight excess iodide solution. A solution of AgI is formed · Surface Chemistry
26. Q96 — The adsorption of a gas is described by the Langmuir isotherm with the equilibrium constant K =0.9 kPa⁻¹ at · Surface Chemistry
27. Q97 — The vapour of a pure substance, when cooled under a pressure less than its triple-point pressure, · Thermodynamics
28. Q98 — The quantities, which are held fixed in a canonical ensemble are · Thermodynamics
29. Q99 — An ideal gas was subjected to a reversible, adiabatic, expansion and then its initial volume was restored by · Thermodynamics

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