Question

The total number possible isomers for the complex compound `[Cu^(II)(NH_(3))_(4) [Pt^(II)CI_(4)]` are
A. 5
B. 6
C. 4
D. 3

Answer 1

Correct Answer - C
The complex compound exhibits coordination isoerism, which arises on account of exchange of ligands between two coordination spheres:
`[Cu(NH_(3))_(4)] [PtC1_(4)]`
`[Cu(NH_(3))_(3)C1] [Pt(NH_(3))C1_(3)]`
`[Cu(NH_(3))_(2)C1_(2)] [Pt(NH_(3))_(2)C1_(2)]` not possible as both the complex entities are neutral
`[Pt(NH_(3))_(3)C1][Cu(NH_(3))C1_(3)]`
`[Pt(NH_(3))_(4)][CuC1_(4)]`
Thus, a total of four isomers are possible for the given complex.