Give a balanced equation for the following reactions:

(a) Carbon with nitric acid.

(b) Lead nitrate and hydrochloric acid.

(c) Conversion of alcohol to ester.

The following questions refer to the electroplating of an article with silver:

(a) Name the electrode formed by the article to be plated.

(b) Name the electrolyte used.

(c) Silver nitrate is a good electrolyte. Why it is not used?

Give the laboratory preparation of:

(a) Ammonia

(b) Nitric acid

Distinguish the following by a chemical test:

(a) Ammonia solution and hydrogen chloride gas solution.

(b) Saturated and unsaturated compounds.

(c) Ferrous chloride and ferric chloride.