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Assertion : The purple colour of KMnO4, ...

Assertion : The purple colour of `KMnO_4`, is due to the charge transfer transition.
Reason : The colour of most of the transition metal complexes'is due to d-d transition. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but(R) is not the correct explanation of (A). c)If(A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

A

If both (A) and (R) are correct and (R) is the correct explanation of(A).

B

If both (A) and (R) are correct, but(R) is not the correct explanation of (A).

C

If(A) is correct, but (R) is incorrect.

D

If both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
B
The intense colour of `KMnO_4`, is not due to d-d transition but due to charge transfer from 0 to M (Ligarid to Metal) reducing the oxidation state of Mn from+to+6 temporarily:
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