Which of the following complexes is an outer | vedclass

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(A) An outer orbital complex uses $sp^3d^2$ hybridization,involving the outer $d$-orbitals.$1$. $[Ni(NH_3)_6]^{2+}$: $Ni^{2+}$ is $3d^8$. $NH_3$ is a

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

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(A) An outer orbital complex uses $sp^3d^2$ hybridization,involving the outer $d$-orbitals.$1$. $[Ni(NH_3)_6]^{2+}$: $Ni^{2+}$ is $3d^8$. $NH_3$ is a weak field ligand relative to $Ni^{2+}$,leading to $sp^3d^2$ hybridization. This is an outer orbital complex.$2$. $[Mn(CN)_6]^{4-}$: $Mn^{2+}$ is $3d^5$. $CN^-$ is a strong field ligand,causing pairing to form $d^2sp^3$ hybridization (inner orbital).$3$. $[Co(NH_3)_6]^{3+}$: $Co^{3+}$ is $3d^6$. $NH_3$ is a strong field ligand for $Co^{3+}$,causing pairing to form $d^2sp^3$ hybridization (inner orbital).$4$. $[Fe(CN)_6]^{4-}$: $Fe^{2+}$ is $3d^6$. $CN^-$ is a strong field ligand,causing pairing to form $d^2sp^3$ hybridization (inner orbital).Therefore,$[Ni(NH_3)_6]^{2+}$ is the outer orbital complex.

Which of the following complexes is an outer orbital complex?

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