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Pure water boils at 99.725^(@)C at Shiml...

Pure water boils at `99.725^(@)C` at Shimla. If `K_(b)` for water is `0.51 K mol^(-1) kg` the boiling point of `0.69` molal urea solution will be:

A

(a) `100.35`

B

(b) `100.08`

C

(c ) `99.37`

D

(d) None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaT_(b)=Kxx"molality"=0.51xx0.69=0.352`
`:. b.pt.=99.725+0.352-100.077^(@)C`
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