During the charging of lead storage battery, the reaction occuring at cathode is represented by

Options

A. `Pb to Pb^(2+) + 2e^(-)`
B. `Pb^(2+) + 2e^(-) to Pb`
C. `Pb^(2+) + SO_4^(2-) to PbSO_4`
D. `PbSO_4 + 2H_2O toPbO_2 + 4H^(+) + SO_4^(2-) + 2e^(-)`

Answer

D