Consider the following complexes:
(I) `K_(2)Ptcl_(6)` (II) `PtCl_(4).2NH_(3)`
(III) `PtCl_(4).3NH_(3)` (IV) `PtCl_(4).5NH_(3)`
Their electrical conductances in an aqueous solution are:

Options

A. 256,0,97,404
B. 404,0,97,256
C. 256,97,0,404
D. 404,97,256,0

Answer

A

Explanation

The electrical conductance of the complexes depend upon the number of ions given by them in the aqueous solutions.
`(i) K_(2)[PtCl_(6)] overset(aq)iff 2K^(+)(aq)+[PtCl_(6)]^(2-)(aq)" "(ii) [Pt(NH_(3))_(2)Cl_(4)]overset(aq)iff [Pt(NH_(3))_(2)Cl_(4)](aq)`
`(iii) [Pt(NH_(3))_(3)Cl_(3)]Cl overset(aq)iff [Pt(NH_(3))_(3)Cl_(3)]^(+)(aq)+Cl^(-)(aq)" " (iv) [Pt(NH_(3))_(5)Cl]Cl_(3) overset(aq)iff[Pt(NH_(3))_(5)Cl]^(3+)+3Cl^(-)`
`{:("Complex","Number of ions","Expected electrical conductance"),((i)K_(2)[PtCl_(6)],3,256),((ii)[Pt(NH_(3))_(2)Cl_(4)],0,0),((iii)[Pt(NH_(3))_(3)Cl_(3)]Cl,2,97),((iv)[Pt(NH_(3))_(5)Cl]Cl_(3),4,404):}`