X2 is a greenish yellow gas with pungent offensive smell used in purification of water. It partially dissolves in H2O to give a solution which turns blue litmus red. When X2 is passed through NaBr solution, Br2 is obtained.
(i) Identify X2, name the group to which it belongs.
(ii) What are the products obtained when X2 reacts with H2O ? Write chemical equation.
(iii) What happens when X2 reacts with hot and conc. NaOH ? Give equation.
