1.

The colour of KMnO_(4) is due to

Answer»

`L RARR M` charge TRANSFER transition
`sigma-sigma^(**)` transition
`M rarrL` charge transfer transition
d-d transition

Solution :The deep purplecolour of `KMnO_(4)` is not due tod-d transition but due to charge transfer from Oto Mn, i.e., from Ligand (L) to Metal (M)which reduces the oxidation STATE of Mn from `+7` to `+6` MOMENTARILY.


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