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Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2020

ChemistryEasysingle choice

$0.1$ molal aqueous solution of $N a B r$ freezes at $- 0.335 ℃$ at atmospheric pressure, $k_{f}$ for water is $1.86 ℃$ . The percentage of dissociation of the salt in solution is

Options:

Answer:

Solution:

$∆ T_{f} = i k_{f} m$

$0.335 = i \times 1.86 \times 0.1$

$i = 1.80$

For $N a B r, i = 1 + α$

$α = 0.80 = 80 %$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Liquid SolutionSubtopic:Abnormal Colligatiove Properties

⏱ 2mℹ️ Source: PYQ_2020

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