Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2020
ChemistryEasysingle choice

A solution of sucrose (molar mass=342 gmol-1) has been prepared by dissolving 68.5 g of sucrose in 1000 g of water. The freezing point of the solution obtained will be
(Kffor water=1.86 Kkgmol-1)

Options:

Answer:
B
Solution:

ΔTf=Kf.wmol.wt.×Wsol.×1000
ΔTf=68.5×1000342×1000×1.86
ΔTf=0.372
F.pt. of solution=0oC-0.372=-0.372C

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Liquid SolutionSubtopic:Abnormal Colligatiove Properties
⏱ 2mℹ️ Source: PYQ_2020

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