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How many Faradays are needed to reduce 1...

How many Faradays are needed to reduce 1 mole of `MnO_(4)^(-)` to `Mn^(2+)`?

A

1

B

2

C

3

D

5

Text Solution

Verified by Experts

The correct Answer is:
D
`8H^(+)+5e^(-)+underset((1"mole"))MnO_(4)^(-)toMn^(+2)+4H_(2)O`
5 mole `e^(-)=5` faraday.
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