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How many coulombs are required for the f...

How many coulombs are required for the following reductions?
1 mol of `MnO_(4)^(-) " to "Mn^(2+)`.

A

`96500C`

B

`1.93xx10^(5)C`

C

`4.83xx10^(5)C`

D

`9.65xx10^(6)C`.

Text Solution

Verified by Experts

The correct Answer is:
C
`Moverset(+7)(nO_(4)^(-))+5e^(-)rarrMoverset(+2)(n^(2+))`
1mol `5xx96500C`
Electricity required `=5xx 96500C`
`=482500C=4.83xx10^(5)C`
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