Question

Which one of the following octahedral complexes will not show geometric isomerism ? (A and B are monodentate ligands)

• A. $\left[M{A}_2{B}_4\right]$
• B. $\left[M{A}_3{B}_3\right]$
• C. $\left[M{A}_4{B}_2\right]$
• D. $\left[M{A}_{5}B\right]$

Answer 1

The correct option is D $\left[M{A}_{5}B\right]$

Octahedral complexes of the type $\left[M{A}_4{B}_2\right],\left[M{A}_2{B}_4\right],\left[M{A}_3{B}_3\right]$ exhibit geometrical isomerism.

So, option D is the correct answer.