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Geometrical shapes of the complexes from...

Geometrical shapes of the complexes fromed by the reaction of ` Ni^(2+)` with ` CO,CN^-` and `H_2O`, respecitively , are :

A

octahedral, tetrahedral and square planar

B

tetrahedral, square planar and octahedral

C

square planar , tetrahedral and octahedral

D

octahedral, square planar and octahedral

Text Solution

Verified by Experts

The correct Answer is:
c
c) `Ni^(2+) + 4CN^(-) to [Ni(CN)_(4)]^(2-)`
`Ni^(2+)` ion has `d^(8)` configuration `CN^(-)` ion being a strong field ligand will cause pairing of d-electrons.

`Ni^(2+) +4CI^(-)rarr [NiCI_(4)]^(2-)`
`CI^(-)` ion being a weak field ligand cannot cause any electron pairing.
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