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Uses of Lanthanides

If CO ligan...

Question

If $C O$ ligands are substituted by $N O$ in respective neutral carbonyl compounds then which of the following will not be correct formula?

C r (C O)_{3} (N O)_{2}

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F e (C O)_{2} (N O)_{2}

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C r (N O)_{4}

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N i (C O)_{2} (N O)_{2}

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Solution

The correct option is A $C r (C O)_{3} (N O)_{2}$
Ligand $N O$ is $3 e^{-}$ donar hence three $C O$ ligands can be substituted by two $N O$ ligands.

Hence, Option "A" is the correct answer.

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