Which following pair of structure and magnetic properties is correct for tetracyanonickalate (II) ion?

Which following pair of structure and magnetic properties is correct for tetracyanonickalate (II) ion?

Square planar, paramagnetic
Tetrahedral, diamagnetic
Square planar, diamagnetic
Tetrahedral, paramagnetic

Solution

$\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{-2}$

In the presence of $\mathrm{CN}^{-}$strong field ligand

Square planar geometry diamagnetic in nature

Asked in: MHT CET 2022 (10 Aug Shift 1)

Practice more Coordination Compounds questions on Aicharya