During the recharging of lead acid storage cell the reaction at anode is

Options

A. `Pb^(2+) + SO_(4)^(2-) to PbSO_(4)`
B. `PbSO_(4) + 2H_(2) O to PbO_(2) + SO_(4)^(2-) + 4H^(+) + 2e^(-)`
C. `Pb to Pb^(2+) + 2e^(-)`
D. `Pb^(2+) + 2e^- to Pb`

Answer

B

Explanation

During charging - the lead storage battery behaves like an electrolytic cell . So , at anode the reaction is
`Pb SO_(4) + 2 H_(2) O to PbO_(2) + 4 H^(+) + SO_(4)^(2-) + 2 e^(-)`