Question

Write cell reaction in lead storage battery during discharge.

Answer 1

The electrode reaction that occurs during discharge.

At anode

`Pb_((s))+SO_(4(aq))^-2->PbSO_(4(s))+2e^-`

At Cathode

`PbO_(2(s)) + 4H_((aq))^+ +SO_(4(aq))^(2-) +2e^-  ->PbSO_(4(s))+2H_2O (l)`

Overall reaction

`Pb_((s))+PbO_(2(s))+4H_((aq))^+ +2SO_(4(aq))^-2->2PbSO_(4(s))+2H_2O`