Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Two 5 molal solutions are prepared by dissolving a non-electrolyte non-volotatile solute separately in the solvents X and Y. The molecular weights of the solvents are M X and M Y , respectively where M X = 
M Y . The relative lowering of vapour pressure of the solution in X is "m" times that of the solution in Y. Given that the number of moles of solute is very small in comparison to that of solvent, the value of "m" is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Mol fraction in x solvent
x solute = 
mol fraction in Y solvent
x solute = 
Ratio of RLVP in both solutions 
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