Write a short note on anamolous properties of the first element of p-block.

Describe briefly allotropism in p- block elements with specific reference to carbon.

Give the uses of Borax

Write a note on Fisher tropsch synthesis.

Give the structure of CO and CO₂.

How is boric acid extracted from borax?

Write the reaction of diboranes with water and alkali.

Give the uses of alum.

What is phosgene? How is it prepared?

What is water gas equilibrium?

What happens to CO₂ when dissolved in water?

Name the building block of zeolites. Why zeolites have high porosity?

(i) Silicones are used for making waterproof fabrics. Give reason.
(ii) Diamond - bad conductor of electricity.

What is crystal field splitting?

Which one is more soluble in diethyl ether, anhydrous Alcl₃ or hydrated Alcl₃? Explain in terms of bonding.