Question

Identify the correct statements for the behaviour of ethane-1,2-diamine as a ligand.
(i) It is a neutral ligand.
(ii) It is a didentate ligand.
(iii) It is a chelating ligand.
(iv) It is a unidentate ligand.

• A. (i). (ii) and (iii)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (i), (iii) and (iv)
  

Answer 1

The correct option is A (i). (ii) and (iii)

$N{H}_2-C{H}_2-C{H}_2-N{H}_2$ is a neutral ligand and behaves both as chelating ligand. It is a bidentate ligand having two $-N{H}_2$ donating groups. When both the lone pair of electrons are donating to metal atom then it behaves as a chelating ligand.