(b) Why are alkali metal chlorides more soluble than alkaline earth chlorides? Explain

State Fajan’s rules. Explain all the rules with suitable examples.

(a) Write the electronic configuration of the elements platinum and gold. Also give reasons in support of your answer.

What is photoelectric effect? How did Einstein explain it?

Give one example of each of the following:

(i) Halogenation of alkane

(ii) Nitration of alkane

(iii) Isomerisation of alkane

(iv) Aromatization of alkane

(v) Pyrolysis of alkane

Draw the resonance structures of cyanate ion. Out of them which one is less important as a resonance structure and why?

Write the possible conformations of butane. Arrange these conformations in the increasing order of their stability giving reasons.