Draw structures of the following :

a. H₂S₂O₇

b. HCIO₃

a. Out of 0.1 molal aqueous solution of glucose and 0.1 molal aqueous solution of KCl, which one will have higher boiling point and why?

b. Predict whether van’t Hoff factor, (i) is less than one or greater than one in the following :

i. CH₃COOH dissolved in water

ii. CH₃COOH dissolved in benzene

Complete and balance the following equations :

a. C + H₂SO₄ (conc.) →

b. XeF₂ + PF₅ →

OR

Write balanced chemical equations involved in the following reactions:

a. Fluorine gas reacts with water.

b. Phosphine gas is absorbed in copper sulphate solution.

Write anode and cathode reactions that occur in dry cell. How does a dry cell differ from a mercury cell?

Account for the following:

a. Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.

b. On reaction with benzene sulphonyl chloride, primary amine yields product soluble in alkali whereas secondary amine yields product insoluble in alkali.