Which one of the following platinum complex is used in cancer chemotherapy?
(А) `cis-[Pt Cl_(2)(NH_(3))_(2)]`
(В) `trans-[PtCl_(2)(NH_(3))]`
(C)`[Pt(NH_(3))_(4)]^(2+)`
(D) `[Pt(Cl_(4))]^(2-)`

Which of the following complex compounds exhibits cis-trans isomerism (a) [PtCI_(2)(NH_(3))_(2)] (b) [PdCI_(2)BrI] (c ) [Pt(NH_(3))(py)(CI)(Br)] All ofh these .

Which one of the following pairs of isomers ad ytpes of isomerism are correctly mathced? (i) [ Co(NH_(3))_(5)(NO_(2))]Cl_(2) and [Co(NH_(3))_(5)(ONO)]Cl_(2) . . . (Linkage) (ii) [Cu(NH_(3))_(4)][PtCl_(4)] and [Pt(NH_(3))_(4)][CuCl_(4)] . .. (coordination) (iii) [PtCl_(2)(NH_(3))_(4)]Br_(2) and [PtBr_(2)(NH_(3))_(4)]Cl_(2) . . (Ionization) Select the correct answer using the codes given below: