Q .     `MnO_(4)^(-) + 8H^(+) + 5e^(-) -> Mn^(2+) + 4H_(2)O;`

`E^o =1.51 V`

`MnO_(2)+ 4H^(+) + 2e^(-) -> Mn^(2+) + 2H_(2)O;`

`E^(0) =1.523 V`

`E_(MnO_(4)^(-) |MnO_(2))^o = ?`

VIT 2014
A

`1. 70 V`

B

`0.91 V`

C

`1.37 V`

D

`0.548 V`

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