Question

Ethylenediamine (en)

• A. monodendate ligand and can occupy one position in coordination polyhedron
• B. bidendate ligand and can occupy two positions in coordination polyhedron
• C. polydendate ligand
• D. tridendate ligand and occupy three positions in coordination polyhedron

Answer 1

Answer: (B)

Ethylenediamine is an organic compound with formula $C _{2} H _{4}\left( NH _{2}\right)_{2}$.

$H _{2} \ddot{ N }- CH _{2}- CH _{2}-\ddot{ N } H _{2}$

It act as a bidentate ligand due to the presence of lone pair of electrons on nitrogen atoms and can occupy two positions.