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

During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes. Give reason.

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.

Write two applications of electrolysis in which the anode diminishes in mass.