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1
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

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 25 English

A
0.3 and log 2.505
B
3 and 2.505
C
3 and 0.7033
D
0.3 and 0.7033
2
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
3
JEE Main 2023 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Match List I with List II

LIST I LIST II
A. Physisorption I. Single Layer Adsorption
B. Chemisorption II. $20-40 \mathrm{~kJ} \mathrm{~mol}^{-1}$
C. $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \stackrel{\mathrm{Fe}(\mathrm{s})}{\longrightarrow} 2 \mathrm{NH}_{3}(\mathrm{~g})$ III. Chromatography
D. Analytical Application or Adsorption IV. Heterogeneous catalysis

Choose the correct answer from the options given below:

A
A - III, B - IV, C - I, D - II
B
A - II, B - III, C - I, D - IV
C
A - II, B - I, C - IV, D - III
D
A - IV, B - II, C - III, D - I
4
JEE Main 2023 (Online) 31st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Adding surfactants in non polar solvent, the micelles structure will look like

JEE Main 2023 (Online) 31st January Morning Shift Chemistry - Surface Chemistry Question 22 English

A
d
B
a
C
c
D
b
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