Which of the following statements is incorrec | vedclass

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Question

(A) $1$. For $[Ni(CO)_4]$,$Ni$ is in $0$ oxidation state. The configuration is $[Ar] 3d^8 4s^2$. Due to the strong field ligand $CO$,electrons pair up

Vedclass · Accepted Answer

$[Ni(CO)_4]$ is tetrahedral and paramagnetic.

Vedclass · Answer

(A) $1$. For $[Ni(CO)_4]$,$Ni$ is in $0$ oxidation state. The configuration is $[Ar] 3d^8 4s^2$. Due to the strong field ligand $CO$,electrons pair up,resulting in $sp^3$ hybridization. It is tetrahedral and diamagnetic. Thus,statement $A$ is incorrect.$2$. For $[Ni(CN)_4]^{2-}$,$Ni$ is in $+2$ oxidation state. The configuration is $[Ar] 3d^8$. $CN^-$ is a strong field ligand,causing pairing,resulting in $dsp^2$ hybridization. It is square planar and diamagnetic.$3$. For $[NiCl_4]^{2-}$,$Ni$ is in $+2$ oxidation state. The configuration is $[Ar] 3d^8$. $Cl^-$ is a weak field ligand,no pairing occurs,resulting in $sp^3$ hybridization. It is tetrahedral and paramagnetic.

Which of the following statements is incorrect?

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