N A L A N D A O P E N U N I V E R S I T Y
M.Sc. Chemistry, Part-I
PAPER-IV
(Solid State and Quantum Chemistry)
Annual Examination, 2016
Time 3 Hours. Full Marks 80
Answer any FIVE Questions.
All questions carry equal marks.
1. State and explain organic solid with reference to poly acetylene. Explain poly acetylene is
semiconductor.
2. What do you understand by solid state defect Derive relation between Frankel defect and
temperature. What is meaning colour centres in alkali metal crystal.
3. What are laws of crystallography How does it help in the study of crystal structure.
4. What is perfect and imperfect crystal Derive a relation between Scotty defect and
temperature.
5. What do you mean by Hermitian operator What are important characteristics On the basis
of its characteristic derive the mathematical equation and predict the properties of Hermitian
operator.
6. What is the magnitude of total oribital, total spin and total angular momenta for ground state
4P of Vanadium.
7. Discuss perturbation theory. Apply perturbation theory so solve Schrödinger equation to
determine approximate values of energies and wave function in more than one electron
system.
8. Calculate the average distance of the electron from nucleus of Hydrogen in the 2S atom.
9. Discuss Hartree-Fock self consistent field theory. What are its demerit.
10. Write short notes on One of the following
The Huckel Molecular Orbital theory
Condon and Slater Rules