Assertion : In acid solution, permanganate is reduced to `Mn^(2+)` by an excess of reducing agent.
Reason : `MnO_(4)^(-)` reduced in `Mn^(2+)` in acidic medium and the product in the presence of an excess of permanganate is `MnO_(2)`.

Options

A. If both assetion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are ture but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer

B

Explanation

Assertion and reasons are correct but reason in not correct explanation of assertion.
Assertion : `MnO_(4)^(-) + 8 H^(+) 5 e^(-) rarr Mn^(2+) + 4H_(2) O`,
`E^(@) = 1.51 V`
Reason : `2MnO_(4)^(-) 3 Mn^(2+) + 2H_(2)O rarr 5MnO_(2) (s) + 4H^(+)`,
`E^(@) = + 1.46 V`.