The sum of coordination number and oxidation number of metal M in the complex M e n 2 C 2 O 4 C l (Where en is ethylenediamine) is:

Step-by-step solution

M e n 2 C 2 O 4 C l Oxidation state of M = +3 en and oxalate ion are bidentate ligands. So, Coordination number of M = 6 Sum of oxidation state + Coordination number = 3 + 6 = 9