JEE Main 2020 — Solutions Question with Solution
From: JEE Main 2020 (Online) 8th January Morning Slot
Question
A graph of vapour pressure and temperature for three different liquids X, Y, and Z is shown below :
The following inferences are made :
(A) X has higher intermolecular interactions compared to Y.
(B) X has lower intermolecular interactions compared to Y.
(C) Z has lower intermolecular interactions compared to Y.
The correct inference (s) is / are :
The following inferences are made :
(A) X has higher intermolecular interactions compared to Y.
(B) X has lower intermolecular interactions compared to Y.
(C) Z has lower intermolecular interactions compared to Y.
The correct inference (s) is / are :
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: A
Correct answer
A(B)
Step-by-step explanation
Vapour pressure of a liquid at a given
temperature is inversely proportional to
intermolecular force of attraction. At the same
temperature, vapour pressure of X is higher
than that of Y.
Therefore (X) has lower intermolecular interactions compared to Y. Statement (B) is correct.
Therefore (X) has lower intermolecular interactions compared to Y. Statement (B) is correct.
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