Question

Which of the following complex ions does not possess optical isomerism?Select the proper choice from the given choices.
(A) [Co(en)(NH₃)₄]²⁺
(B) [Co(H₂O)₄(en)]³⁺
(C) [Co(en)₂(NH₃)₂]²⁺
(D) [Co(NH₃)₃CI₃]⁺

Answer 1

I am sure that A is the right answer