Question

Number of incorrect statements are‐

$\left(A\right)$ The $\pi $ bond between metal and carbonyl carbon reduces the bond order of $C-O$ in carbon monoxide

$(B) dz^{2}$ orbital of central metal atom/ ion is used in $dsp^{2}$ hybridisation.

$\left(C\right)CN^{-}$ is a $\pi ‐$ acid Ligand.

$\left(D\right)$ All negative ligands are stronger than neutral ligands.

Answer 1

$\left(A\right)$ The $\pi $ bond between metal and carbonyl carbon reduces the bond order of $C-O$ in carbon monoxide

$\left(C\right)CN^{-}$ is a $\pi ‐$ acid Ligand.

The above statements are correct.

$\text{d}_{\text{x}^{\text{2}} - \text{y}^{\text{2}}}$ orbital of central metal atom/ ion is used in $dsp^{2}$ hybridisation.