Which of the following can be used to reduce local action in a Laclanche cell?

Physics JAMB 1998

Which of the following can be used to reduce local action in a Laclanche cell?

  • A carbon rod as the positive pole
  • Pure zinc as the negative pole
  • Potassium permanganate solution in contact with the positive pole checkmark
  • common salt solution

The correct answer is: C

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