The complex [Co(NH3 )5 (NO2 )]Cl2 is obtained in yellow and red coloured forms . The differencein colour is attributed to the following type of isomerism

17. In the complex [Co(NH3)5(NO2)]Cl2 due to the ligand NO2– ion, the complex exhibits(a) Optical isomerism (b) Hydrate isomerism (c) Ionisation isomerism (d) Linkage isomerism

19. [Co(NH3)5SO4]Br and [Co(NH3)5Br]SO4 exhibit(a) Co–ordinate isomerism (b) Hydrate isomerism (c) Ionisation isomerism (d) Linkage isomerism20. [Cr(H2O)6]Cl3 (violet) and its solvate isomer [Cr(H2O)5Cl]Cl2.H2O (grey-green) exhibit(a) Co–ordinate isomerism (b) Hydrate isomerism (c) Ionisation isomerism (d) Linkage isomerism

How many ions are produced from the complex [Co(NH3)6]Cl2

[Co(NH3)6][Cr(CN)6] and [Cr(NH3)6][Co(CN)6] are an example of(1 Ponto)Coordination isomerismlinkage isomerismHydrate isomerismligand isomerism

Find out the number of geometrical isomer(s) possible for the complex [Co(NH3)3(NO2)3].