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CGP EDU Academic Team
Published on: August 13, 2026
Consider a binary mixture of volatile liquids. If at X A = 0.4 the vapour pressure of solution is 580 torr then the mixture could be (p A º = 300 torr, p B ° = 800 torr):
Text Solution
Verified by ExpertsThe correct answer is:
A
It shows negative deviation from Raoult’s law
p s (actual) = 580 torr
p s (Raoult) = 0.4 × 300 + 0.6 × 800 = 600 torr.
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