A) the number of ligands around a metal ion bonded by \[\sigma -\]bonds
B) the number of ligands around a metal ion bonded by it \[\pi -\]bonds
C) the number of ligands around a metal ion bonded by \[\sigma \] and \[\pi -\]bonds both
D) the number of only anionic ligands bonded to the metal ion
Correct Answer: A
Solution :
Coordination number is the maximum covalency shown by a metal or metal ion. It is the maximum number of ligands attached to metal by \[\sigma \] coordinate bonds.
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