Which of the following complexes is diamagnet | vedclass

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(D) $1$. $[Ni(CO)_4]$: $Ni$ is in $0$ oxidation state $(3d^8 4s^2)$. $CO$ is a strong field ligand,causing pairing of electrons. It undergoes $sp^3$ h

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All of these

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(D) $1$. $[Ni(CO)_4]$: $Ni$ is in $0$ oxidation state $(3d^8 4s^2)$. $CO$ is a strong field ligand,causing pairing of electrons. It undergoes $sp^3$ hybridization,making it tetrahedral and diamagnetic.$2$. $[HgI_4]^{2-}$: $Hg^{2+}$ has a $d^{10}$ configuration. It undergoes $sp^3$ hybridization,resulting in a tetrahedral geometry with no unpaired electrons,hence it is diamagnetic.$3$. $[Fe(CO)_4]^{2-}$: $Fe$ is in $-2$ oxidation state $(3d^{10})$. It undergoes $sp^3$ hybridization,resulting in a tetrahedral geometry with no unpaired electrons,hence it is diamagnetic.Since all the given complexes are diamagnetic and tetrahedral,the correct option is $D$.

Which of the following complexes is diamagnetic and tetrahedral?

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