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Which one of the following ions exhibits...

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

A

`CrO_4^(2-)`

B

`Cr_2O_7^(2-)`

C

`MnO_4^-`

D

`MnO_4^(2-)`

Text Solution

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The correct Answer is:
D
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