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PtCl(4).6H(2)O can exist as a hydrated c...

`PtCl_(4).6H_(2)O` can exist as a hydrated complex. `1 m` aqueous solution has the depression in freezing point of `3.72^(@)`. Assume `100%` ionization and `K_(f)(H_(2)O)=1.86^(@)mol^(-1) kg`, then the complex is

A

`[Pt(H_(2)O)_(6)]Cl_(4)`

B

`[Pt(H_(2)O)_(4)Cl_(2)]Cl_(2).2H_(2)O`

C

`[Pt(H_(2)O)_(3)Cl_(3)]Cl.3H_(2)O`

D

`[Pt(H_(2)O)_(2)Cl_(4)].4H_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaT_(f)="Molality" xx K_(f) xx i`
`i=2`, hence complex is binary.
Also, CN of `Pt` is `6` and complex is hydrated.
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