The coordination compound [Co en 2Cl2]+ exhibits geometrical isomerism, specifically cis-trans or syn-anti isomerism. This type of isomerism occurs due to the different possible arrangements of the ligands around the central metal ion.In this complex, Co is the central metal ion, en ethylenediamine is a bidentate ligand, and Cl is a monodentate ligand. The coordination number of Co in this complex is 6.There are two possible geometrical isomers for this complex:1. cis-[Co en 2Cl2]+: In this isomer, the two Cl ligands are adjacent to each other cis position . The two en ligands are also adjacent to each other.Structure:`` Cl | Co / \ en en``2. trans-[Co en 2Cl2]+: In this isomer, the two Cl ligands are opposite to each other trans position . The two en ligands are also opposite to each other.Structure:`` Cl | Co / \ en en \ Cl``So, there are a total of 2 possible geometrical isomers for the coordination compound [Co en 2Cl2]+.