Standard Books Chemistry Electronic Configurations MCQ Question with Solution

Which one of the following ions exhibits d-d transition and paramagnetism as well?

A

CrO₄²⁻

B

Cr₂O₇²⁻

C

MnO₄⁻

D

MnO₄²⁻

Option D

In MnO₄²⁻, Mn⁶⁺ has one unpaired electron in the d-orbital, making it paramagnetic and allowing d-d transitions.

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STANDARD Chemistry Electronic Configurations MCQ Question