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JEE Main 202325 JanuaryEvening Shift
Exam
JEE Main
Year
2023
Date
25 January
Shift
Evening Shift
Subject
Chemistry
Chapter
Surface Chemistry

JEE Main 2023 · 25 January · Evening Shift · Chemistry · Surface Chemistry

The number of incorrect statement/s from the following is/are A....

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, ΔH\Delta H becomes more and more negative.

D. Adsorption is accompanied by decrease in entropy of the system.

Correct answer

2

Step-by-step solution

Water vapours are absorbed by anhydrous calcium chloride. There is a decrease in surface energy during adsorption. As the adsorption proceeds, ΔH\Delta H 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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