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CGP EDU Academic Team
Published on: August 14, 2026
The co-ordination number of a central metal atom in a complex is determined by :
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Verified by ExpertsThe correct answer is:
D
The co-ordination number of a central metal atom in a complex is determined by the number of ligands
around a metal ion bonded by sigma bonds. It is also define as the number of atoms, ions, or molecules that a central atom or ion holds as its nearest neighbors in a complex. For example, in 
, four carbonyl ligands are bonded to Ni atom. Hence, the coordination number of Ni in 
is four.
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