1.

If E^(o)""_(Fe^(+2)//Fe) is x_(1),E^(o)""_(Fe ^(+3)//Fe)is x_(2), then E^(o) ""_(Fe^(+3)//Fe^(2+)) will be :

Answer»

`3x_(2) - 2x_(1)`
`x_(2) - x_(1)`
`x_(2) + x_(1)`
`2x_(1) + 3x_(2)`

ANSWER :A


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