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PtCl(4).6H(2)Ocan exist as hydrated comp...

`PtCl_(4).6H_(2)O`can exist as hydrated complex `1` molal aq.solution has depression in freezing point of `3.72^(@)C`Assume `100%` ionisation and `K_(f)(H_(2)O=1.86^(@)mol^(-1))kg` then 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)=ixxmxxk_(f)`
`i=(3.72)/(1.86xx1)=2`
so salt is `(Pt(H_(2)O)_(3)Cl_(3))Cl.H_(2)O`
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