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The charge required for the reduction of...

The charge required for the reduction of 1 mole of `Cr_(2)O_(7)^(2-)` ions to `Cr^(3+)` is

A

3F

B

3 coulomb

C

6F

D

`2xx6.023xx10^(23)e^(-)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Cr_(2)O_(7)^(-2)rarr2Cr^(3+)`
Change in O.S.=6`
`therefore`Charge required = 6F
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