Question

While charging lead storage battery

Options

• PbSO₄ on cathode is reduced to Pb

• PbSO₄ on anode is oxidised to PbO₂

• PbSO₄ on anode is reduced to Pb

• PbSO₄ on cathode is oxidised to Pb

Answer 1

PbSO₄ on anode is reduced to Pb

Explanation:

Charging: anode: \[\ce{PbSO4_{(s)} + 2e^- -> Pb_{(s)} + SO^{-2}_{4(aq)}}\]

Cathode: \[\ce{PbSO4_{(s)} + 2H2O_{(l)} -> PbO2_{(s)} + SO^{-2}_{4(aq)} + 2e^-}\]