Question

A dilute aqueous solution of $N{a}_{2}S{O}_4$ is electrolysed using platinum electrodes. The product at anode and cathode, respectively are:

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

When dilute solution of $N{a}_{2}S{O}_4$ is subjected to electrolysis, the ions dissociate into cations and anions. The conductivity of sodium sulphate (ions do not react) increases when it is dilute. At cathode, hydrogen gas is liberated and at anode, oxygen gas is formed.