Give balanced chemical equation for the following conversions :

(a) Copper sulphate to inky blue solution

(b) Methane to chloroform

Look at the figure given alongside and answer the following questions ;

(a) Explain why is a freshly prepared saturated solution of FeSO₄ preferred in the above diagram.

(b) Why is the ring formed at the junction of two liquids ?

State your observations when:

(a) Ethylene gas is passed through bromine water

(b) Silver nitrate solution is added to hydrochloric acid.

(c) Barium chloride is added to potassium sulphate solution.

40 cm³ of methane reacts with chlorine. The reaction for the same is

CH₄ + 2Cl₂ ⟶ CH₂Cl₂ + 2HCI

Find

(a) The volume of chlorine gas used.

(b) The volume of hydrogen chloride gas formed.

(c) How is hydrogen chloride gas dried?