[Ni(CO)_4] is diamagnetic. Correct statement for the complex is

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MCQ

$[Ni(CO)_4]$ is diamagnetic. Correct statement for the complex is

A
$(C-O)$ bond length during complex formation increases than that of isolated $CO$
B
$CO$ will act as strong field ligand
C
Complex have tetrahedral geometry
✓
All of the above correct

✓

Answer

Correct option: D.

All of the above correct

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