Tamil Nadu Board of Secondary EducationHSC Science Class 12

While charging lead storage battery - Chemistry

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MCQ

While charging lead storage battery

Options

  • PbSO4 on cathode is reduced to Pb

  • PbSO4 on anode is oxidised to PbO2

  • PbSO4 on anode is reduced to Pb

  • PbSO4 on cathode is oxidised to Pb

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Solution

PbSO4 on anode is reduced to Pb

Explanation:

Charging: anode: \[\ce{PbSO4_{(s)} + 2e^- -> Pb_{(s)} + SO^{-2}_{4(aq)}}\]

Cathode: \[\ce{PbSO4_{(s)} + 2H2O_{(l)} -> PbO2_{(s)} + SO^{-2}_{4(aq)} + 2e^-}\]

Concept: Thermodynamics of Cell Reactions
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Chapter 9: Electro Chemistry - Evaluation [Page 63]

APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 12th Chemistry Volume 1 and 2 Answers Guide
Chapter 9 Electro Chemistry
Evaluation | Q 12. | Page 63

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