The reaction occurring at the anode during discharge of lead storage battery is\

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Lead storage cell is $\mathrm{Pb}\left|\mathrm{H}_{2} \mathrm{SO}_{4}ight| \mathrm{PbO}_{2}, \mathrm{~Pb}$ Anode: $\mathrm{Pb}+\mathrm{SO}_{4}^{2-} ightleftarrows \mathrm{PbSO}_{4}+2 \overline{\mathrm{e}}$\ Cathode:\ $\underline{\mathrm{PbO}_{2}+\mathrm{SO}_{4}^{2-}+4 \mathrm{H}^{+}+2 \overline{\mathrm{e}} ightleftarrows \mathrm{PbSO}_{4}+2 \mathrm{H}_{2} \mathrm{O}}$\ Cell reaction: $\mathrm{Pb}+\mathrm{PbO}_{2}+2 \mathrm{H}_{2} \mathrm{SO}_{4} ightleftarrows 2 \mathrm{PbSO}_{4}+2 \mathrm{H}_{2} \mathrm{O}$\ During discharge the forward reaction takes place. All reactions are reversible and hence the cell is a secondary cell. During recharging the backward reaction takes place.\