The coordination compound [Co NH3 4Cl2]+ exhibits two types of isomerism: geometrical isomerism and optical isomerism.1. Geometrical Isomerism:In this compound, there are two geometrical isomers possible, which are cis and trans isomers.a Cis isomer: In the cis isomer, the two chloride Cl ligands are adjacent to each other. The structure can be represented as: Cl |NH3-Co-NH3 | | NH3 NH3b Trans isomer: In the trans isomer, the two chloride Cl ligands are opposite to each other. The structure can be represented as: Cl |NH3-Co-NH3 | | NH3 Cl2. Optical Isomerism:The cis isomer of [Co NH3 4Cl2]+ exhibits optical isomerism as it has a non-superimposable mirror image. The two optical isomers are enantiomers, which are a pair of chiral molecules. They can be represented as:Cis--[Co NH3 4Cl2]+ and Cis--[Co NH3 4Cl2]+However, the trans isomer does not exhibit optical isomerism as it has a plane of symmetry, making it an achiral molecule.In summary, the coordination compound [Co NH3 4Cl2]+ has two geometrical isomers cis and trans and the cis isomer further exhibits optical isomerism with two enantiomers and .