This chapter is currently out of syllabus
1
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The enthalpy change for the adsorption process and micelle formation respectively are

A
$$\mathrm{\Delta H_{ads} > 0~and~\Delta H_{mic} < 0}$$
B
$$\mathrm{\Delta H_{ads} > 0~and~\Delta H_{mic} > 0}$$
C
$$\mathrm{\Delta H_{ads} < 0~and~\Delta H_{mic} < 0}$$
D
$$\mathrm{\Delta H_{ads} < 0~and~\Delta H_{mic} > 0}$$
2
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Which of the following represent the Freundlich adsorption isotherms?

JEE Main 2023 (Online) 8th April Morning Shift Chemistry - Surface Chemistry Question 5 English 1JEE Main 2023 (Online) 8th April Morning Shift Chemistry - Surface Chemistry Question 5 English 2

Choose the correct answer from the options given below:

A
B, C, D only
B
A, B only
C
A, B, D only
D
A, C, D only
3
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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In figure, a straight line is given for Freundrich Adsorption ($$y=3x+2.505$$). The value of $$\frac{1}{n}$$ and $$\log \mathrm{K}$$ are respectively.

JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Surface Chemistry Question 26 English

A
0.3 and log 2.505
B
3 and 2.505
C
3 and 0.7033
D
0.3 and 0.7033
4
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R

Assertion A: Amongst $$\mathrm{He}, \mathrm{Ne}, \mathrm{Ar}$$ and $$\mathrm{Kr}$$; 1$$\mathrm{g}$$ of activated charcoal adsorbs more of $$\mathrm{Kr}$$.

Reason R: The critical volume $$\mathrm{V}_{\mathrm{c}}\left(\mathrm{cm}^{3} \mathrm{~mol}^{-1}\right)$$ and critical pressure $$\mathrm{P}_{\mathrm{c}}$$ (atm) is highest for Krypton but the compressibility factor at critical point $$\mathrm{Z}_{\mathrm{c}}$$ is lowest for Krypton.

In the light of the above statements, choose the correct answer from the options given below

A
Both A and R are true and R is the correct explanation of A
B
A is false but R is true
C
Both A and R are true but R is NOT the correct explanation of A
D
A is true but R is false
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