Write equations for the formation of ammonia.

(i) NH₄Cl and slaked lime are heated.

(ii) Aluminium nitride and water.

Write an equation for the reaction of chlorine with excess of ammonia.

State the purpose of liquefying the ammonia produced in the Haber’s process.

Select from the list — Ammonia, Copper oxide, Copper sulphate, Hydrogen chloride, Hydrogen sulphide, Lead bromide : The compound which is not a metal hydroxide but it's aqueous solution is alkaline in nature.