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Given below are the half -cell reactions...

Given below are the half -cell reactions
`Mn^(2+) + 2e^(-) rarr Mn, E^@ =- 1. 18 V`
`2 (Mn^(3+) = E^(-) rarr Mn^(2+)). E^@ = + 1.5 V`
The `E^@` for `Mn^(2+) rarr Mn+ 2 Mn^(3+)` will be.

A

`-2.69V,` the reaction will not occur

B

`-2.69, ` the reaction will not occur

C

`-0.33V,` the reaction will not occur

D

`-0.33V,` the reaction will occur

Text Solution

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The correct Answer is:
A
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