In which of the following octahedral complexes of Co (at. no.27) will be magnitude of D 0 be the highest ?

Question

In which of the following octahedral complexes of Co (at. no.27) will be magnitude of D D0 be the highest ?

(A) [Co(CN)6]3-

(B) [Co(C2O4)3]3-

(C) [Co(H2O)6]3+

(D) [Co(NH3)6]3+

Answer 1

(A) [Co(CN)6]3-