What type of geometry and magnetic nature is present in a complex $\left[\mathrm{NiCl}_4\right]^{2-?}$

What type of geometry and magnetic nature is present in a complex $\left[\mathrm{NiCl}_4\right]^{2-?}$
  1. Square planar, diamagnetic
  2. Square planar, Paramagnetic
  3. Tetrahedral, Paramagnetic
  4. Tetrahedral, diamagnetic

Solution

As $\mathrm{Cl}^{-}$is a weak field ligand, therefore outer hybridization takes place and $\left[\mathrm{NiCl}_4\right]^{-2}$ has tetrahedral geometry and paramagnetic character.

Asked in: MHT CET 2022 (08 Aug Shift 2)

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