In alkaline medium, the reduction of permanganate anion involves a gain of____________electrons.

Question

Accepted Answer

Correct answer: 3. (3) In Faintly alkaline medium potassium permanganate changes to manganese dioxide in its oxidising action. M n O_4^−+2 H_2O+3 e^−→M n O_2+4 O H^− The oxidation state of manganese in M n O_4^− is +7 and in MnO_2 is +4. Hence, it transfers 3 electrons during the oxidising action in alkaline medium

$In alkaline medium, the reduction of permanganate anion involves a gain of____________electrons.$

Solution

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