EDTA 4 - is ethylenediaminetetraacetate ion. The total number of N - Co - O bond angles in Co EDTA 1 - complex ion is

Step-by-step solution

EDTA 4 - is a hexadentate ligand containing four negative charges on its corner oxygen atoms as follows : Being a hexadentate ligand, it forms a ring like structure through chelation. The central metal ion Co is in the centre, coordinated to the two N atoms and the four O - ions through chelation. Now, if we observe, we see that each N atom forms four N - Co - O bonds with the four O - ions. Therefore, two N atoms will form 2 × 4 = 8 N - Co - O bonds in the complex structure of [ Co ( EDTA ) ] 1 - . Each bond will