Answer the following : (i) What is soda ash? (ii) Which electrolyte is used to obtain sodium in Castner's Process? (iii) What is the intermeidate product is Solvy's porcess? (iv) Which product is formed when monoxide is passed through soidum hydroxide under pressure? (v) Out of Na and K, which has higher melting point? (vi) What do we get when crystals of washing soda are exposed to air? (vii) What is the chemical formula of Carnallite? (viii) Why is the solution of sodium in liquid ammonia conducting in nature?

Answer the following : (i) What is soda ash? (ii) Which electrolyte

1.	Answer the following : (i) What is soda ash? (ii) Which electrolyte is used to obtain sodium in Castner's Process? (iii) What is the intermeidate product is Solvy's porcess? (iv) Which product is formed when monoxide is passed through soidum hydroxide under pressure? (v) Out of Na and K, which has higher melting point? (vi) What do we get when crystals of washing soda are exposed to air? (vii) What is the chemical formula of Carnallite? (viii) Why is the solution of sodium in liquid ammonia conducting in nature?
Answer» Solution :(i) Soda ash is anhydrous sodium carbonate `(Na_(2)CO_(3))`. (ii) FUSED NaOH is used. (iii) Sodium hydrogen carbonate is formed as the intermediate product. (iv) Sodium formate is formed as a result of the REACTION. `NaOH + CO overset(5 to 10 atm)(to) underset("Sod formate")(HCOONa)` (v) Na has higher melting point than K. (vi) Upon exposing the crystal of washing soda `(Na_(2)CO_(3).10H_(2)O)` monohydrate `(Na_(2) CO_(3) H_(2)O)` is formed as a result EFFLORESCENCE. The powder is called washing powder. (vii) Carnallite is KCI `MgCI_(3) 6H_(2)O`. (viii) Solution is CONDUCTING due to the formation of ammoniated electrons.