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CGP EDU Academic Team
Published on: August 14, 2026
Both [Ni(CO) 4 ] and [Ni(CN) 4 ] 2– are diamagnetic. The hybridisation of nickel in these complexes, respectively, are :
Text Solution
Verified by ExpertsThe correct answer is:
B
Ni (28) 
1s 2 , 2s 2 2p 6 , 3s 2 3p 6 3d 8 , 4s 2
In [Ni(CO) 4 ], Ni is in zero oxidation state and CO being strong field ligand compels for paring of electrons.
So, [Ni(CO) 4 ] 
In [Ni (CN) 4 ] 2– , Ni is in +2 oxidation state and CN – being strong field ligand compels for paring of electrons.
So, [Ni(CN 4 ] 2– 
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