Predicating the products of electrolysis: What do you expect to be the half reactions in the
Channel: Doubtnut
Date: 2020-08-23

Predicating the products of electrolysis: What do you expect to be the half reactions in the electrolysis of aqueous `Na_(2)So_(4)` solution.  Strategy: Before we look at the electrode reations, we should consider the following facts: (1) Since `Na_(2)So_(2)` does not hydrolyze in water, the `pH`of the solution is close to `7. (2)` The `Na^(+)` ions are not reduced at the cathode and the `SO_(4)^(2-)` ions are not oxidized at the anode. These conclusions are drawn from the electrolysis of water in the presence of sulphuric acid in  aqueous sodium chloride solution