JEE Main 2023 — Surface Chemistry Question with Solution
JEE Main 2023 (25 Jan Shift 2)
Question
The number of incorrect statement/s from the following is/are
A. Water vapours are adsorbed by anhydrous calcium chloride.
B. There is a decrease in surface energy during adsorption.
C. As the adsorption proceeds, becomes more and more negative.
D. Adsorption is accompanied by decrease in entropy of the system.
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Show full solutionCorrect answer: 2
Step-by-step explanation
Water vapours are absorbed by anhydrous calcium chloride. There is a decrease in surface energy during adsorption. As the adsorption proceeds, becomes more and more negative. Adsorption is accompanied by decrease in entropy of the system. Thus, option A and C are incorrect.
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This is a previous-year question from JEE Main 2023, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.