Give reasons for the following:

Potassium is not extracted by electrolysis of it's aqueous salt solution.

Give reasons – The electrolysis of acidulated water is considered to be an example of catalysis.

Give reason for the following:

Electrolysis of molten lead bromide is considered to be a redox reaction.

Give reasons why:

(i) Sodium Chloride will conduct electricity only in fused or aqueous solution state.

(ii) In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.

(iii) Although copper is a good conductor of electricity, it is a non-electrolyte.