Which of the following complexes is expected to be inert to the ligand substitution?

[C o (N O_{2})_{6}]^{3 -}

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[N i (e n)_{3}]^{2 +}

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[M g (E D T A)]^{2 -}

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[S c (H_{2} O)_{6}]^{3 +}

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Solution

The correct option is A $[C o (N O_{2})_{6}]^{3 -}$
$[C o (N O_{2})_{6}]^{3 -}$ is expected to be inert to the ligand substitution. This is due to small size, high charge and $t_{2 g}^{6}$ electronic configuration of cobalt ion.

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Similar questions

K : K_{4} [M n (C N)_{6}], L : K_{3} [C o (N O_{2})_{6}], M : [C o (H_{2} O)_{6}] C l_{3}, N : [C r (C O)_{6}], O : [N i (e n)_{3}] (N O_{3})_{3}

P : [P t (N H_{3})_{2} C l_{2}]

[C o (N O_{2})_{6}]^{4 -}

[C o (N O_{2})_{6}]^{3 -}

K_{4} [F e (C N)_{6}]

K_{3} [F e (C N)_{6}]

[C O (H_{2} O)_{6}]^{2 +}

[C O (N H_{3})_{6}]^{2 +}

[C O > C_{2} H_{4} > B r^{-} > C l^{-} > N H_{3}]

[P t C l_{3} (C O)]^{-} + N H_{3} \to

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