Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Mole fraction of a non-electrolyte in aqueous solution is 0.07. If K f is 1.86° mol –1 kg, depression in f.p., 
T f , is:
Text Solution
Verified by ExpertsThe correct answer is:
D
Firstly we have to convert mole fraction into molality.
Molality = 
= 
= 4.18
Now, 
T f = k f m
= 1.86 × 4.18 = 7.78 0 .
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