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Explain the hybridisation, geometry and ...

Explain the hybridisation, geometry and magnetic property of `[Ni(Cl)_(4)]^(2-)`.

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The ground state of electronic configuration of nickel is `[Ar] 3d^8 4s^2`

In the presenceof carbonyl group -CO the 4s- orbital into the 3d-subshell and pairs up with the d-electrons due to strong ligand effect.

Now `Sp^3` hybridization take place giving 4 vacant hybrid orbital the electron pairs donated by carbon monoxide ligands occupies the `sp^3` hybridized orbitals of nickel .

The geometry of hte compound is tetrahedral since there is no unpaired electrons compound is diamagnetic .
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