संकुल `[Pt(NH_(3))_(4)][PtCl_(4)]` का IUPAC नाम लिखिए।

(a) Name the types of isomerrism shown by the following pairs of compounds: (i) [CoCl(H_(2)O)(NH_(3))_(4)]Cl_(2) and [CoCl_(2)(NH_(3))_(4)]Cl.H_(2)O (ii) [Pt(NH_(3))_(4)]PtCl_(6)] and [Pt(NH_(3))_(4)Cl_(2)][PtCl_(4)] . (b) Write the IUPAC name of [Co(en)_(2)Cl_(2)]^(+) ion and draw the structure of its geometrical isomers.