# A chelating agent has two or more than

Question:

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?

(i) thiosulphate

(ii) oxalate

(iii) glycinato

(iv) ethane-1,2-diamine

Solution:

Option (i) thiosulphate is the answer.