JEE Advanced | 2013Coordination CompoundHard

Question

The pair(s) of coordination complex/ion exhibiting the same kind of isomerism is(are) -

Options

A.[Cr(NH3)5Cl]Cl2 and [Cr(NH3)4Cl2]Cl
B.[Co(NH3)4Cl2]+ and [Pt(NH3)2(H2O)Cl]+
C.[CoBr2Cl2]2- and [PtBr2Cl2]2-
D.[Pt(NH3)3(NO3)] Cl and [Pt(NH3)3Cl] Br

Solution

(A) [Cr(NH3)5Cl]Cl2 does not show any isomerism while [Cr(NH3)4Cl2]Cl shows geometrical isomerism
(B) [Co(NH3)4Cl2]+ and [Pt(NH3)2(H2O) (Cl)]+

hence, [Co(NH3)4Cl2]+ ion shows geometrical isomerism.
[Pt(NH3)2(H2O) (Cl)]+

hence, [Pt(NH3)2(H2O)(Cl)]+ ion shows geometrical isomerism
(C) [CoBr2Cl2]2- and [PtBr2Cl2]2-

does not show any isomerism square planar and shows geometrical isomerism
(D) [Pt(NH3)3(NO3)]Cl and [Pt(NH3)3Cl]Br
show ionisation isomerism
show ionisation isomerism
hence, Ans is (B, D)

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