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In acidic medium, reaction MnO(4)^(-) hA...

In acidic medium, reaction `MnO_(4)^(-) hArr Mn^(2+)` is an example of -

A

Oxidation by 3 electrons

B

Reduction by 3 electrons

C

Oxidation by 5 electrons

D

Reduction by 5 electrons

Text Solution

Verified by Experts

The correct Answer is:
D
`MnO_(4)^(-) rarr Mn^(2+)`. In this reaction `5e^(-)` are needed for the reduction of `Mn^(2+)` as :
`MnO_(4)^(-)+5e^(-) rarr Mn^(2+)`.
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