In which of the following transition metal complexes does the metal exhibit zero oxidation state?

[C o (N H_{3})_{6}] C l_{3}

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[F e (H_{2} O)_{6}] S O_{4}

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[N i (C O)_{4}]

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[F e (H_{2} O)_{6}] C l_{3}

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Solution

The correct option is B $[N i (C O)_{4}]$
Since CO is a neutral ligand the metal Ni exhibit zero oxidation state in $N i (C O)_{4}$ .

Option C is correct.

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Similar questions

[C o (N H_{3})_{6}] C l_{3}

[N i (N H_{3})_{6}] C l_{2}

[C r (H_{2} O)_{6}] C l_{3}

[F e (H_{2} O)_{6}] C l_{2}

(i) [C o (N H_{3})_{5}] C l_{3}, (i i) [N i (N H_{3})_{5}] C l_{2}, (i i i) [C r (H_{2} O)_{6}] C l_{3}, (i v) [F e (H_{2} O)_{6}] C l_{2}

[C o (N H_{3})_{6}] C l_{3}

[F e (H_{2} O)_{6}] C l_{3}

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