Home Maths JEE - Advanced Previous Year Paper JEE-Advanced-2017-Paper-1 For a solution formed by mixing liquids L an…
Maths JEE - Advanced Previous Year Paper JEE-Advanced-2017-Paper-1 Single Correct MCQ
Published on: August 14, 2026

For a solution formed by mixing liquids L and M, the vapour pressure of L plotted against the mole fraction of M in solution is shown in the following figure. Here xl and xm represent mole fractions of L and M, respectively, in the solution. The correct statement(s) applicable to this system is(are)

A
Attractive intermolecular interactions between L-L in pure liquid L and M-M in pure liquid M are stronger than those between L-M when mixed in solution
B
The point Z represents vapour pressure of pure liquid M and Raoult's law is obeyed when
C
The point Z represents vapour pressure of pure liquid L and Raoult's law is obeyed when x
D
The point Z represents vapour pressure of pure liquid M and Raoult's law is obeyed from x L = 0 to x L = 1

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Text Solution

Verified by Experts
The correct answer is:
A

(a, c)

From graph it is clear that there is +ve deviation w.r.t L. Therefore option A is correct. When , then Z will have value equal to (vapour pressure of pure L).

Therefore option C is also correct.

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