Surface Chemistry
JEE Main / Chemistry / Physical Chemistry / 116 questions
ChemistryPhysical Chemistry116 PYQs
Practice 116 JEE Main Chemistry questions from Surface Chemistry. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
116
PYQs on Page
Chemistry / Physical Chemistry
2002-2024
Year Range
Based on indexed question metadata
80
Last 5 Years
2020-2024
106
Last 10 Years
2015-2024
Recent Year Trend
2019
2020
2021
2022
2023
2024Latest year
201924 max PYQs/year2024
Question Types
116PYQs
MCQ84.5%
INTEGER15.5%
Difficulty Mix
#1 Easy86
#2 Medium29
#3 Hard1
80 in last 5 years106 in last 10 years
Surface Chemistry Questions
Showing 16 of 116 questions on this page.
1Surface Chemistry
The Tyndall effect is observed only when following conditions are satisfied:
(a) The diameter of the dispersed particles is much smaller than the wavelength of the light used.
(b) The diameter of the dispersed particle is not much smaller t...
(a) The diameter of the dispersed particles is much smaller than the wavelength of the light used.
(b) The diameter of the dispersed particle is not much smaller t...
MCQ+4 / -12017
2Surface Chemistry
A particular adsorption process has the following characteristics : (i) It arises due
to van der Waals forces and (ii) it is reversible. Identify the correct statement that describes the above adsorption process :
to van der Waals forces and (ii) it is reversible. Identify the correct statement that describes the above adsorption process :
MCQ+4 / -12016
3Surface Chemistry
The most appropriate method of making egg-albumin sol is :
MCQ+4 / -12016
4Surface Chemistry
Gold numbers of some colloids are : Gelatin : 0.005 - 0.01, Gum Arabic : 0.15 - 0.25; Oleate : 0.04 - 1.0; Starch : 15 - 25. Which among these is a
better protective colloid ?
better protective colloid ?
MCQ+4 / -12016
5Surface Chemistry
For a linear plot of log (x/m) versus log p in a Freundlich adsorption isotherm, which of the following
statements is correct ? (k and n are constants)
statements is correct ? (k and n are constants)
MCQ+4 / -12016
6Surface Chemistry
3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was
filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per
gram of charcoal) is:
filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per
gram of charcoal) is:
MCQ+4 / -12015
7Surface Chemistry
The coagulating power of electrolytes having ions Na+, Al3+ and Ba2+ for arsenic sulphide sol increases in the order:
MCQ+4 / -12013
8Surface Chemistry
According to Freundlich adsorption isotherm, which of the following is correct ?
MCQ+4 / -12012
9Surface Chemistry
Which of the following statements is incorrect regarding physisorptions ?
MCQ+4 / -12009
10Surface Chemistry
Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10 and 0.005, respectively. The
correct order of their protective powers is
correct order of their protective powers is
MCQ+4 / -12008
11Surface Chemistry
In Langmuir’s model of adsorption of a gas on a solid surface
MCQ+4 / -12006
12Surface Chemistry
The volume of a colloidal particle, VC as compared to the volume of a solute particle
in a true solution VS, could be
in a true solution VS, could be
MCQ+4 / -12005
13Surface Chemistry
The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and
negatively charged, respectively, which of the following statements is NOT correct?
negatively charged, respectively, which of the following statements is NOT correct?
MCQ+4 / -12005
14Surface Chemistry
Which one of the following characteristics is not correct for physical adsorption?
MCQ+4 / -12003
15Surface Chemistry
Alum helps in purifying water by :
MCQ+4 / -12002
16Surface Chemistry
The formation of gas at the surface of tungsten due to adsorption is the reaction of order :
MCQ+4 / -12002
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