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How many Faradays of electricity are required for the given reaction to occur? MnO ₄⁻ Mn ²⁺

Options

  1. A5 ~F
  2. B3 ~F
  3. C1 ~F
  4. D7 ~F

Correct answer

A. 5 ~F

Step-by-step solution

+7 MnO ₄⁻ Mn ²⁺ The reaction can be written as : MnO ₄⁻+5 e⁻ Mn ²⁺ Hence, 5 moles of electrons or 5 ~F of electricity are required for the given reaction.

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