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  4. The geometry and magnetic behaviour of the complex [Ni(CO)4] are

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Q. The geometry and magnetic behaviour of the complex $[Ni(CO)_4]$ are

NEETNEET 2018Coordination Compounds

Solution:

$Ni (28):[ Ar ] 3 d ^{8} 4 s ^{2}$

$\because CO$ is a strong field ligand

Configuration would be :

image

For, four $'CO'$ -ligands hybridisation would be $sp ^{3}$ and thus the complex would be diamagnetic and of tetrahedral geometry.

image