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Which of the following compounds has col...

Which of the following compounds has colour but no unpaired electrons?

A

`KMnO_(4)`

B

`K_(2)MnO_(4)`

C

`MnSO_(4)`

D

`MnCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Electronic configuration of `Mn` is `[Ar]3d^(5)4s^(2)`. Being transition metal it bas 7 valence electrons and all are involved in bond formation in `MnO_(4)^(-)`. Hence it has no unpaired electron.
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