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out of the following complexes, which is...

out of the following complexes, which is diamagenitic in nature ?

A

`[NiCl_(4)]^(2-)`

B

`[Ni(CN)_(4)]^(2-)`

C

`[CuCl_(4)]^(2-)`

D

`[CoF_(6)]^(3-)`

Text Solution

Verified by Experts

The correct Answer is:
B
Only `CN^(-)` ion is a strong field ligand . It will cause electron pairing resulting in a diamagnetic complex. All other ligands are weak field ligands and cannot cause any electron pairing.
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