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How many faradays of electricity are req...

How many faradays of electricity are required for the given reaction to occur -
`MnO_(4)^(-)rarr Mn^(2+)`

A

5F

B

3F

C

1F

D

7F

Text Solution

Verified by Experts

The correct Answer is:
A
`overset(+7)(MnO_(4))rarr Mn^(2+)`
The reaction can be written as : `MnO_(4)^(-)+5e rarr Mn^(2+)`
Hence, 5 mol of electrons of 5 F of electricity is required for the given reaction.
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