Assertion The purple colour of KMnO 4 is due to the charge transfer transition. Reason The intense colour in most of the transition metal complexes is due to d-d transition.

Question

Assertion The purple colour of KMnO 4 is due to the charge transfer transition. Reason The intense colour in most of the transition metal complexes is due to d-d transition. (A) Both Assertion and Reason are true and Reason is the correct (B) Both Assertion and Reason are true and Reason is not the correct explanation of Assertion (C) Assertion is true but Reason is false (D) Both Assertion and Reason are false

Tardigrade Admin · Accepted Answer

Purple colour of KMnO 4 arises due to charge transfer by oxygen to Mn. In this way one of the oxygen is O -and Mn charges from +VII to VI (with one unpaired electron in 3 d ).

Q. Assertion The purple colour of $K M n O_{4}$ is due to the charge transfer transition.
Reason The intense colour in most of the transition metal complexes is due to $d - d$ transition.

Both Assertion and Reason are true and Reason is the correct

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

Assertion is true but Reason is false

Both Assertion and Reason are false

Purple colour of $K M n O_{4}$ arises due to charge transfer by oxygen to $M n$ . In this way one of the oxygen is $O^{-}$ and $M n$ charges from +VII to $V I$ (with one unpaired electron in $3 d$ ).

Q. Assertion The purple colour of KMnO4​ is due to the charge transfer transition. Reason The intense colour in most of the transition metal complexes is due to d−d transition.