In recharging a lead-acid accumulator, the reaction at the cathode can be represented as

In recharging a lead-acid accumulator, the reaction at the cathode can be represented as

A.
Pb2+(aq) + SO2-4(aq) →PbSO4(s)
B.
Pb2+(aq) + 2e- →Pb(s)
C.
Pb2+(aq) + 2H2O(l) → PbO2(s) + 4H+(aq) + 4e-
D.
Pb(s) → Pb2+(aq) + 2e-

Correct Answer: Option D
Explanation

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