problem1) Answer all the problems:

i) Find out molecular weight by depression of freezing point.

ii) Describe Born openheimer approximation.

iii) How could we find out force constant of a bond.

iv) Describe what is meant by bonding and antibonding states.

v) What do you understandby optical activity?

problem2) describe compton effect and photoelectric effect.

problem3) prepare notes on various types of electronic transitions in different molecular orbitals.

problem4) Describe pure rotational Raman spectra and pure vibrational Raman spectra.