Question

The coordination number of a central metal atom in a complex is determined by ______.

विकल्प

• the number of ligands around a metal ion bonded by sigma bonds

• the number of ligands around a metal ion bonded by pi-bonds

• the number of ligands around a metal ion bonded by sigma and pi-bonds both

• the number of only anionic ligands bonded to the metal ion

Answer 1

The coordination number of a central metal atom in a complex is determined by the number of ligands around a metal ion bonded by sigma bonds.

Explanation:

Coordination number refers to the total number of sigma bonds formed between the central metal atom/ion and the ligands. Pi-bonding, if present, does not affect the coordination number.