Question

What type of isomerism is present in the pair of complexes $\left[Co\right(N{H}_3{)}_{5}Br]S{O}_4$ and $\left[Co\right(N{H}_3{)}_{5}S{O}_4]Br$?

• A. Linkage isomerism.
• B. Ligand isomerism.
• C. Ionisation isomerism.
• D. Coordination.

Answer 1

Answer: (C)

Ionisation isomerism.

Option (C) is correct.

The compex $\left[Co\right(N{H}_3{)}_{5}Br]S{O}_4$ and $\left[Co\right(N{H}_3{)}_{5}S{O}_4]Br$ shows ionisation isomerism as there is exchange of ions $Br$ and $S{O}_4$ between inner and outer coordination sphere.