1.

Which of the following reaction occurs at the cathode during the charging oflead storage battery?

Answer»

`PB ^(2) +2 e^(-) to Pb`
`Pb^(2+) SO_(4)^(2-)to PbSO_(4)`
`PB to Pb ^(2+) +2c^(-)`
`PbSO_(4)+ 2H_(2)O to 2P bO_(2)to 2PbO_(2) +4H^(+) +SO_(4)^(2-) +2e ^(-)`

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