Question

The coordination number of a central metal atom in a complex(s) is/are not determined by :

• A. The number of only anionic ligands bonded to the metal ion.
• B. The number of ligands around a metal ion bonded by $\pi$-bonds.
• C. The number of ligands around a metal ion bonded by both $\sigma$ and $\pi$-bonds.
• D. The number of ligands around a metal ion bonded by $\sigma$-bonds.

Answer 1

Answer: (A), (B), (C)

The correct options are
A The number of only anionic ligands bonded to the metal ion.
B The number of ligands around a metal ion bonded by $\pi$-bonds.
C The number of ligands around a metal ion bonded by both $\sigma$ and $\pi$-bonds.