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In an electrolytic cell one litre of 1M ...

In an electrolytic cell one litre of 1M aqueous solution of `MnO_(4)^(-)` is reduced to `MnO_(4)^(-2)` at cathode. How many faradays would be required so that the solution becomes `0.899` M `MnO_(4)^(-)`

A

10 Faradays

B

0.1 Faradays

C

`1.0 xx 10^(-4)` Faraday

D

`1 xx 10^(-2)` Faraday

Text Solution

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The correct Answer is:
B
No. of mole =1 F for 0.101 mole = 0.1 F
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