Solve this: Q. In the complex ion [Fe(EDTA)]– the coordination number and oxidation state of central metal ion is :- (1) C.N = 6 O.N = + 3 (2) C.N. = 1 O.N. = – 1 (3) C. N. = 4 O.N. = + 2 (4) C.N. = 3 O.N. = + 3 Share with your friends Share 13 Shyama Charan Mandal answered this Dear Student, Please find your answer below Correct answer is option 1, Solution: 18 View Full Answer