1. Compound X on heating with copper turnings and concentrated sulphuric acid liberates a reddish brown gas.

Question

Identify the anion present in the following compounds : 

1. Compound X on heating with copper turnings and concentrated sulphuric acid liberates a reddish brown gas. 

2. 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. 

3. Compound Z which on reacting with dilute sulphuric acid liberates a gas which turns lime waer milky, but the gas has no effect on acidified potassium dichromate solution. 

4. Compound L on reacting with Barium chloride solution gives a white precipitate insoluble in dilute hydrochloric acid or dilute nitric acid. 

Answer 1

1. Nitrate ion, NO^{3 –} 

2. Chloride ion, Cl^– 

3. Carbonate ion, CO₃^2- 

4. Sulphate ion, SO₄

Comments

Plz explain the answers