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

Chemistry
JAMB 2008

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-
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Correct Answer: Option B
Explanation

In lead acid ,lead dissociates at the cathode Pb2+(aq) + 2e- →Pb(s)

There is an explanation video available below.

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Explanation Video

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