The pair of coordination complex exhibiting the same kind of isomerism is .

Options

A. `[Cr(NH_(3))_(5)Cl]Cl_(2)` and `[Cr(NH_(3))_(4)Cl_(2)]Cl`
B. `[Co(NH_(3))_(4)Cl_(2)]^(+) and [Pt(NH_(3))_(2)(H_(2)O)Cl]^(-)`
C. `[CoBr_(2)Cl_(2)]^(2-) and [PtBr_(2)Cl_(2)]^(2-)`
D. `[Pt(NH_(3))_(3)(NO_(3))]Cl and [Pt(NH_(3))_(3)Cl]Br`

Answer

B, D

Explanation

Each complex ion in the pair `[Co(NH_(3))_(4)Cl_(2)]^(+),[Pt(NH_(3))_(2)(H_(2)O)Cl]^(-)` shows geometrical isomerism. Each complex in the pair `[Pt(NH_(3))_(3)(NO_(3))]Cl,[Pt(NH_(3))_(3)Cl]Br` shows ionization isomerism. In other pairs, the two complexes/ions do not show the same type of isomerism.