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Write Cell Reaction in Lead Storage Battery During Discharge. - Chemistry

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Numerical

Write cell reaction in lead storage battery during discharge.

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Solution

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`

Concept: Batteries - Primary Batteries
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