Give balanced chemical equation for the following.

(a) Preparation of ethyne from (ethylene dibromide) 1, 2-di bromoethane.

(b) Ethanoic acid from ethanol.

(c) Sodium acetate from acetic acid.

Give one relevant observation for each of the following reactions.

(a) Zinc carbonate is heated.

(b) Excess of ammonia is passed through an aqueous solution of lead nitrate.

(c) Sodium hydrogen carbonate is added to nitric acid.

Define.

(a) Electronaffinity

(b) Electronegativity

X [2, 6] and Y [2, 8, 8, 1] are two elements.

Using this information complete the following:

(a) …………… is the metallic element.

(b) Ionisation energy of X is …………… than Y.

(c) …………… is the reducing agent.