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The complex showing a spin -magnetic mom...

The complex showing a spin -magnetic momnet of `2.82 BM` is .

A

`Ni(CO)_4`

B

`[NiCl_4]^(2-)`

C

`Ni(PPh_3)_4`

D

`[Ni(CN)_4]^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`[NiCl_4]^(2-)` is tetrahedral and has two unpaired electrons :
`mu_s = sqrt( n(n+2)) = sqrt(2 (2 +2)) = 2.83 BM`
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