1
JEE Main 2023 (Online) 30th January Evening Shift
Numerical
+4
-1
Change Language
The graph of $\log \frac{x}{m}$ vs $\log \mathrm{p}$ for an adsorption process is a straight line inclined at an angle of $45^{\circ}$ with intercept equal to $0.6020$. The mass of gas adsorbed per unit mass of adsorbent at the pressure of $0.4 \mathrm{~atm}$ is _________ $\times 10^{-1}$ (Nearest integer).

Given: $\log 2=0.3010$
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2
JEE Main 2023 (Online) 29th January Morning Shift
Numerical
+4
-1

Following chromatogram was developed by adsorption of compound 'A' on a 6 cm TLC glass plate. Retardation factor of the compound 'A' is _________ $$\times 10^{-1}$$.

JEE Main 2023 (Online) 29th January Morning Shift Chemistry - Surface Chemistry Question 6 English

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3
JEE Main 2023 (Online) 25th January Evening Shift
Numerical
+4
-1
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Based on the given figure, the number of correct statement/s is/are __________.

JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Surface Chemistry Question 4 English

A. Surface tension is the outcome of equal attractive and repulsive 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.

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4
JEE Main 2023 (Online) 25th January Evening Shift
Numerical
+4
-1
Change Language

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, $$\Delta$$H becomes more and more negative.

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

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