STANDARD Chemistry Redox Reactions MCQ Question
The charge required for reducing 1 mole of MnO₄⁻ to Mn²⁺ is
1.93 × 10⁵ C
2.895 × 10⁵ C
4.28 × 10⁵ C
4.825 × 10⁵ C
Correct Answer
Detailed Explanation
5 moles of electrons are needed for the reduction of 1 mole of MnO₄⁻ to Mn²⁺. Therefore, the charge required is 5 × 96500 = 4.825 × 10⁵ C.
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