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Question
Choose the most correct option.
The oxidation reaction that takes place in lead storage battery during discharge is
Options
`"Pb"_(("aq"))^(2+) + "SO"_(4("aq"))^(2-) -> "PbSO"_(4("s"))`
`"PbSO"_(4("s")) + 2"H"_2"O"_(("l")) -> "PbO"_(2("s")) + 4"H"_(("aq"))^+ + "SO"_(4("aq"))^(2-) + 2"e"^-`
`"Pb"_("s") + "SO"_(4("aq"))^(2-) -> "PbSO"_(4("s")) + 2"e"^-`
`"PbSO"_(4("s")) + 2"e"^- -> "Pb"_("s") + "SO"_(4("aq"))^(2-)`
Solution
`"Pb"_("s") + "SO"_(4("aq"))^(2-) -> "PbSO"_(4("s")) + 2"e"^-`
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