Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Two liquids 
and 
form an ideal solution. The mixture has a vapour pressure of 400 mm
at 300 K when mixed in the molar ratio of 
and a vapour pressure of 350 mm when mixed in the molar ratio of 
at the same temperature. The vapour pressures of the two pure liquids X and Y respectively are:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Molar ratio of 
means 
Molar ratio of 
means, 
or 
…… .(ii)
Eqn (ii) - Eqn. (i) gives
On putting value of 
in eq. (i), we get
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