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

Options

A. `Pb^(2+)+SO_(4)^(2-)toPbSO_4`
B. `PbSO_4+H_2OtoPbO_2+SO_4^(2-)+2H^+`
C. `PbtoPb^(2+)_2e^(-)`
D. `Pb^(2+)+2e^(-)toPb`

Answer

B

Explanation

The following reactions take place during the charging:
At aAnode: `PdSO_(4_(s))+2e^(-)toPd_(s)+SO_(4_(aq))^(2-)`
At Cathode: `PdSO_(4_(s))+2H_2O_(I)toPdO_(2_(s))+SO_(4_(aq))^(2-)+4H^(+)+2e^(-)`