Which of the following types of isomerism is exhibited by the coordination complex [ Co(NH ₃)₃ Cl ₃] ?

Step-by-step solution

The given complex [ Co(NH ₃)₃ Cl ₃] is an octahedral complex of the type [MA₃B₃] . Complexes of the general formula [MA₃B₃] exhibit a specific type of geometrical isomerism known as facial (fac) and meridional (mer) isomerism. In the facial isomer, three identical ligands occupy the corners of one octahedral face. In the meridional isomer, three identical ligands occupy positions around the meridian of the octahedron. It does not show optical isomerism because both the fac and mer isomers possess planes of symmetry