Which one of the following complexes is an ou | vedclass

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(D) In the $[Ni(NH_3)_6]^{2+}$ complex,the oxidation state of $Ni$ is $+2$. $Ni$ has an outer electronic configuration of $3d^8, 4s^2$,so $Ni^{2+}$ ha

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$[Ni(NH_3)_6]^{2+}$

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(D) In the $[Ni(NH_3)_6]^{2+}$ complex,the oxidation state of $Ni$ is $+2$. $Ni$ has an outer electronic configuration of $3d^8, 4s^2$,so $Ni^{2+}$ has an electronic configuration of $3d^8, 4s^0$. $NH_3$ is a weak field ligand,so it does not cause pairing of the $3d$ electrons. Therefore,the complex utilizes the $4d$ orbitals for hybridization,resulting in $sp^3d^2$ hybridization. Since the outer $d$-orbitals are used,it is classified as an outer orbital complex.

Which one of the following complexes is an outer orbital complex?

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