AIIMS2009Chemistry-Solutions
AIIMS 2009 Chemistry Raoult's Law MCQ Question
Type: MCQ-numerical-Medium-Class 12
A mixture of two miscible liquids A and B is distilled under equilibrium conditions at 1 atm pressure. The mole fraction of A in solution and vapour phase are 0.30 and 0.60 respectively. Assuming ideal behaviour of the solution and the vapour, calculate the ratio of the vapour pressure of pure A to that of pure B.
A
4.0
B
3.5
C
2.5
D
1.85
Correct Answer
Option B
Detailed Explanation
In solution, xA = 0.30; xB = 0.70
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