NEETChemistryCoordination Compounds
Which of the following options explain on the basis of valence bond theory why [Ni(CN) 4 ] 2– ion with square planar structure is diamagnetic but the [NiCl 4 ] 2– ion with tetrahedral geometry is paramagnetic?
Options
- AThe square planar arrangement leads to stronger ligand-metal bonding, resulting in diamagnetism.
- BIn [Ni(CN) 4 ] 2– ion ,3d electrons get paired because CN is a strong ligand but in case of [NiCl 4 ] 2– ,3d e
- CThe tetrahedral geometry causes weaker ligand-metal bonding, resulting in paramagnetism.
- DThe oxidation state of Ni in [Ni(CN) 4 ] 2– is different from [NiCl 4 ] 2– , affecting their magnetic behaviou
Correct answer
B. In [Ni(CN) 4 ] 2– ion ,3d electrons get paired because CN is a strong ligand but in case of [NiCl 4 ] 2– ,3d e
Step-by-step solution
Correct Option is : (B) In [Ni(CN) 4 ] 2– ion ,3d electrons get paired because CN is a strong ligand but in case of [NiCl 4 ] 2– ,3d electrons don't get paired as Cl is a weak ligand