Test: Coordination Compounds (January 8) - NEET MCQ

Ambidentate Ligand: Nitro

• An ambidentate ligand is a type of polydentate ligand that can bind to a central atom in multiple ways because it has two or more donor atoms, but uses only one of them in forming a coordinate bond at a time.
• Nitro (NO^2-) is an example of an ambidentate ligand. It can coordinate to the central metal atom either through the nitrogen atom (forming a nitro complex) or through one of the oxygen atoms (forming a nitrito complex).
• The other options provided do not have this property. Oxalate is a bidentate ligand, meaning it simultaneously uses both of its oxygen atoms to bind to the central atom. Carbonyl is a monodentate ligand, it can only bind through the carbon atom of the C=O group. Acetate is also a monodentate ligand, it can only bind through the oxygen atom of the C=O group.

Therefore, among the given options, only Nitro is an ambidentate ligand.

Coordination number of the central ion is equal to no. of coordination bonds formed with surrounding ions.

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oxidation state of Ag in tollen’s reagent is +1.

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Oxalate is a bidentate ligand.

Central Metal ion behave as a Lewis Acid while Ligand act as a lewis Base.

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This is double salt so name is written in sequential manner.

[Fe(CO)₅]

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