Question

The hybridisation of $[NiC{l}_4{]}^{2-}$ and $\left[Ni\right(CN{)}_4{]}^{2-}$ considering hybridization of the metal ion are respectively:

• A. $s{p}^3,ds{p}^2$
• B. $ds{p}^2,s{p}^3$
• C. Both $s{p}^3$
• D. Both $ds{p}^2$

Answer 1

The correct option is A $s{p}^3,ds{p}^2$

$[NiC{l}_4{]}^{2-}$
Ni is in +2 oxidation state.
$N{i}^{2+}-\left[Ar\right]3d^8$
Hybridization involved is $s{p}^3$ as participating orbitas are 4s and 4p.
$[NiC{N}_4{]}^{2-}$
Ni is in +2 oxidation state.
$N{i}^{2+}-\left[Ar\right]3d^8$
$C{N}^{-}$ is a strong field ligand. It causes the pairing of the 3d electrons.
Hybridization involved is $ds{p}^2$ as participating orbitas are 3d, 4s and 4p.