Question

Which of the following complex will show facial-meridional isomerism?

• A. $\left[Co\right(N{H}_3{)}_3\left(N{O}_2{)}_3\right]$
• B. $\left[Pt\right(N{H}_3{)}_{2}C{l}_2]$
• C. $\left[Cr\right(N{H}_3{)}_{4}C{l}_2]Cl$
• D. $K_4\left[Fe\right(CN{)}_6]$

Answer 1

The correct option is A $\left[Co\right(N{H}_3{)}_3\left(N{O}_2{)}_3\right]$

$\left[Co\right(N{H}_3{)}_3\left(N{O}_2{)}_3\right]$ complex will show facial-meridional isomerism. Such isomerism is shown by complexes of the type $\left[Co\right(A{)}_3\left(B{)}_3\right]$ where A and B are monodentate ligands.

Hence, option $A$ is correct.