Electrolysis of a solution of `MnSO_(4)` in aqueous sulphuric acid is
Channel: Doubtnut
Date: 2020-02-16

Electrolysis of a solution of `MnSO_(4)` in aqueous sulphuric acid is a method for the preparation of `MnO_(2)` as per reaction, `Mn_((aq.))^(2+)+2H_(2)O rarr MnO_(2(s))+2H_((aq))^(+)+H_(2(g))` Passing a current of 27 ampere for 24 hour gives one of `MnO_(2)`. Waht is the value of current efficiency ? Write the reaction taking place at the cathode the anode.