Identify the anion present in the following compound: Compound X on heating with copper turnings and concentrated sulphuric acid liberates a reddish brown gas.

Identify the anion present in the following compounds: i] Compound X on heating with copper turnings & conc. sulphuric acid liberates a reddish brown gas. ii] When a solution of compound Y is treated with silver nitrate solution a white precipitate is obtained which is soluble in excess of ammonium hydroxide solution. iii] Compound Z which on reacting with dilute sulphuric acid liberates a gas which turns lime water milky, but the gas has no effect on acidified potassium dichromate solution. iv] Compound L on reacting with barium chloride solution gives a white precipitate insoluble in dilute hydrochloric acid or dilute nitric acid.

Identify the anion present in the following compounds : Compound Z which on reacting with dilute sulphuric acid liberates a gas which turns lime water milky, but the gas has no effect on acidified potassium dichromate solution.

When copper metal is treated with concentrated sulphuric acid, the gas liberated is

Identify the anion present in each of the following compounds : A salt M on treatment with concentrated sulphuric acid produces a gas which fumes in moist air and gives dense fumes with ammonia.

Identify the anion present in the following compound : Compound L on reacting with Barium chloride solution gives a white precipitate insoluble in dilute hydrochloric acid or dilute nitric acid.

Name the anion in each of the following compounds : Compound 'Z' on heating with conc. sulphuric acid, liberates a gas which on bubbling through silver nitrate solution gives a white precipitate, soluble in liquid ammonia.

Name the anion in each of the following compounds : Compound 'Y' on heating with dilute sulphuric acid, liberates a gas which turns lime water milky, but has no effect on potassium permanganate solution.

When sodium chloride is heated with concentrated sulphuric acid, the gas liberated is

The compound formed on heating chlorobenzene with chloral in the presence of concentrated sulphuric acid is-

Write balanced equations for the following reactions: Copper sulphate from copper and concentrated sulphuric acid.