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Which of the following reactions occurs ...

Which of the following reactions occurs at the anode during the recharging of lead storage battery ?

A

`Pb+SO_(4)^(2-) rarr PbSO_(4)+2e^(-)`

B

`Pb+PbO_(2)+H_(2)SO_(4) rarr 2PbSO_(4)+2H_(2)O`

C

`PbSO_(4)+2e^(-) rarr Pb+SO_(4)^(2-)`

D

`PbSO_(4)+2H_(2)O rarrPb+PbO_(2)+2H_(2)SO_(4)+2e^(-)`

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