ion is not stable in aqueous solution because of dispropor…

Chemistry Electrochemistry Electrode Potential, E Cell, Nernst Equation and ECS Single Correct MCQ

Published on: August 13, 2026

ion is not stable in aqueous solution because of disproportionation reaction. value for disproportionation of is (Given , )

– 0.49 V

0.49 V

– 0.38 V

0.38 V

Text Solution

Verified by Experts

The correct answer is:

The required reaction can be obtained by using the following reactions.

…..(i)

…..(ii)

Multiplying eq. (i) by 2 we get

…..(iii)

…..(iv)

Subtract the eq . (iv) from (iii)

Also

This is the value for the reaction

But the given reaction is just reverse of it

∴ ∴ for given reaction = + 0.38 V .

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