Name the type of isomerism shown by the following pairs of coordination compounds:
(i) [Co (NH3)NO2 ]Cl2 and [Co (NH3)5 ONO]Cl2
(ii) [Cr (H20)5 Cl] Cl2 H2 O and [Cr (H2 O)4 Cl2 ] Cl.2H20
(i) Linkage isomerism.
(ii) Hydrate isomerism.