Question

Among the following which are ambidentate ligands?
(i) $NO^-_2 \, \, \, \, \, \, \, \, \, \, \, \, \, (ii) NO^-_3$
(iii) $EDTA^{4-}\, \, \, \, \, \, \, \, \, \, \, \, \, (iv) C_2O^{2-}_4$
(v) $SCN^- \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, (vi) H_2NCH_2CH_2NH_2$

• A. (i) and (ii)
• B. (iii) and (iv)
• C. (i) and (vi)
• D. (iii) and (vi)
• E. (i) and (v)

Answer 1

Answer: (E)

The ligands which have two coordination positions but can coordinate to the central metaI ion through only one coordination position at a time, are called ambidentate Iigand,
e.g., $CN^-, CNS^-, NO_2^-. $