Discussion Forum



1)

Which of the following complex species is not expected to exhibit optical isomerism?


A) [Co(en)2]3+

B) [Co(en)2Cl2]+

C) [Co(NH3)3Cl3]

D) [Co(en)(NH3)Cl2]+

Answer:

Option C

Explanation:

Optical isomerism is exhibited by only those complexes which lack elements of symmetry.

 [Co(NH3)3Cl3] shows facial s wellas meridional isomerism . But both forms contain a plane of symmetry. Thus, this complex does not exhibit optical isomerism.