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IAT IISER2025ChemistryElectrochemistry

During the charging and discharging of a lead-acid battery (a Pb anode, a grid of Pb packed with PbO ₂ as cathode, and an aqueous solution of H ₂ SO ₄ as an electrolyte), which of the following redox reactions does NOT occur?

Options

  1. APb ⁴⁺+4 e ⁻ Pb
  2. BPb ²⁺ Pb ⁴⁺+2 e ⁻
  3. CPb ~Pb ²⁺+2 e ⁻
  4. D2 ~Pb ²⁺ Pb ⁴⁺+ Pb

Correct answer

A. Pb ⁴⁺+4 e ⁻ Pb

Step-by-step solution

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