Among the following complex ions, which is diamagnetic in nature is

[C o F_{6}]^{3 -}

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[N i C l_{4}]^{2 -}

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[N i (C N)_{4}]^{2 -}

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[C u C l_{4}]^{2 -}

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Solution

The correct option is C $[N i (C N)_{4}]^{2 -}$
In $[N i (C N)_{4}]^{2 -}$ , Ni has $d s p^{2}$ hybridisation where, $C N^{-}$ is a strong ligand. Hence, all electrons in 3d are paired.

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Similar questions

The incorrect statement(s) among the following is(are):

i) Primary valency of a transition metal ion in complex represent its oxidation number.

ii) $Z n^{2 +}$ is colourless.

iii) $M n C l_{2}$ exhibits green color in aqueous solution.

iv) $F e, C o, N i$ complexes are diamagnetic in nature.

F e = 26, C o = 27

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