A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?
A. thiosulphato
B. oxalato
C. glycinato
D. ethane-1,2-diamine
Answer:A
A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?
A. thiosulphato B. oxalato C. glycinato D. ethane-1,2-diamine
Explanation: Thiosulphato is a mnnodentate ligand whereas Oxalato, glycinaLo and elhvlene diamine are bidentate ligands and can form rings with the central metal ion. So, they are also chelating ligands. Thiosulphato is a monodentale ligand and hence, cannot form chelate rings. Hence, it is not a chelating ligand