JEE Main 2023 — Surface Chemistry Question with Solution
JEE Main 2023 (25 Jan Shift 2)
Question
Based on the given figure, the number of correct statement/s is/are
A. Surface tension is the outcome of equal attractive and repulsion forces acting on the liquid molecule in bulk.
B. Surface tension is due to uneven forces acting on the molecules present on the surface.
C. The molecule in the bulk can never come to the liquid surface.
D. The molecules on the surface are responsible for vapour pressure if the system is a closed system.
Enter your answer
Show full solutionCorrect answer: 2
Step-by-step explanation
Surface tension is the outcome of unequal attractive and repulsion forces acting on the liquid molecule in bulk. Surface tension is due to uneven forces acting on the molecules present on the surface. The molecule in the bulk can come to the liquid surface- due to brownian movement and convection. The molecules on the surface are responsible for vapour pressure if the system is a closed system.
Thus, B and D options are correct.
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