What is the co-ordination number of Ni in nickel-DMG complex?

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Solution

The correct option is D 4
Co-ordination number is total number of atoms directly attached to the central metal.

DMG ligand is bidentate (i.e. two atoms are attach to central metal).

In the Ni-Complex 2 DMG ligands are present i.e. total 4 atoms are attached to central metal.

Hence the coordination number is 4.

Option D is correct.

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