Which type of isomerism is exhibited by [Co(H2O)6]Cl3 and [Co(H2O)4Cl2]Cl.2H2O?

Ionisation isomerism Linkage isomerism Hydrate isomerism Co-ordination isomerism

Hydrate isomerism

Compounds which have same composition but differ in the number of water molecule as ligands and as molecules of hydration are called hydrate isomers.  [Co(H2O)6]Cl3 and [Co(H2O)4Cl2]Cl.2H2O shows hydrate isomerism.