MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryCoordination compoundsValence Bond Theory

Which of the following is diamagnetic?

A.[Ni(NH3)4]2+

B.[NiCl4]2–

C.[Ni(H2O)4]2+

D.[Ni(CO)4]✓ Correct

Explanation

CO is a strong field ligand. It means the electronic configuration of Ni is 3d8 and all the electrons in the d – orbital will be paired up due to the strong field ligand. That is the reason [Ni(CO)4] is diamagnetic.

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