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Question 710011
JEE Chemistry · Medium

Electrochemistry: Battery chemistry MCQ

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Battery chemistryMediumQuestion 710011

Question

In a lead storage battery, which reaction occurs at the anode during discharge?
  1. A
    Pb → PbSO₄
    Correct
  2. B
    PbO₂ → PbSO₄
  3. C
    H₂SO₄ → H₂O
  4. D
    Pb → Pb²⁺

Correct answer

Pb → PbSO₄

Explanation

During discharge: Anode: Pb + SO₄²⁻ → PbSO₄ + 2e⁻ (oxidation). Cathode: PbO₂ + SO₄²⁻ + 4H⁺ + 2e⁻ → PbSO₄ + 2H₂O (reduction).

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