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How many faradays are required to reduce...

How many faradays are required to reduce ` 1` mol of `MnO_4^(-)` to `Mn^(2+)`?

A

1

B

5

C

3

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
`MnO_(4)^(c-)+5e^(-) 8H^(o+)rarr Mn^(2+)+4H_(2)O`
`5e^(-)=5F=1 mol of MnO_(4)^(c-)`
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