The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is .

Question

Canvas Classes · Accepted Answer

Reduction of permanganate to  in acidic medium:

Oxidation state change:
- Mn in : +7
- Mn in : +4
- Change:  = gain of 3 electrons

Note: This is the reduction in neutral/faintly acidic medium. In strongly acidic medium,  is reduced to  (5 electrons).

For : 3 electrons

Answer: 3

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