Surface Chemistry PYQs - Last 5 Years
JEE Main / Chemistry / Physical Chemistry / 80 recent questions
ChemistryPhysical Chemistry2020-2024
Practice 80 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.
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Chemistry / Physical Chemistry
2020-2024
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80
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2020-2024
80
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80PYQs
MCQ77.5%
INTEGER22.5%
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#1 Easy55
#2 Medium24
#3 Hard1
80 in last 5 years80 in last 10 years
Last 5 Years Surface Chemistry Questions
Showing 30 of 80 filtered questions.
1Surface Chemistry
The nature of charge on resulting colloidal particles when FeCl3 is added to excess of hot water is :
MCQ+4 / -12021
2Surface Chemistry
Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?
MCQ+4 / -12021
3Surface Chemistry
The sol given below with negatively charged colloidal particles is :
MCQ+4 / -12021
4Surface Chemistry
Match List I with List II :
List-IExample of colloids
List - IIClassification
(a) Cheese
(i) dispersion of liquid in liquid
(b) Pumice stone
(ii) dispersion of liquid in gas
(c) Hair cream...
List-IExample of colloids
List - IIClassification
(a) Cheese
(i) dispersion of liquid in liquid
(b) Pumice stone
(ii) dispersion of liquid in gas
(c) Hair cream...
MCQ+4 / -12021
5Surface Chemistry
In Freundlich adsorption isotherm at moderate pressure, the extent of adsorption \(\left( {{x \over m}} \right)\) is directly proportional to Px. The value of x is :
MCQ+4 / -12021
6Surface Chemistry
Which one of the following statements is FALSE for hydrophilic sols?
MCQ+4 / -12021
7Surface Chemistry
In Freundlich adsorption isotherm, slope of AB line is :
MCQ+4 / -12021
8Surface Chemistry
Most suitable salt which can be used for efficient clotting of blood will be :
MCQ+4 / -12021
9Surface Chemistry
When silver nitrate solution is added to potassium iodide solution then the sol produced is :
MCQ+4 / -12021
10Surface Chemistry
The conditions given below are in the context of observing Tyndall effect in colloidal solutions :(A) The diameter of the colloidal particles is comparable to the wavelength of light used.(B) The diameter of the colloidal particles is much ...
MCQ+4 / -12021
11Surface Chemistry
100 ml of 0.0018% (w/v) solution of Cl\(-\) ion was the minimum concentration of Cl\(-\) required to precipitate a negative sol in one h. The coagulating value of Cl\(-\) ion is _________ (Nearest integer)
INTEGER+4 / -12021
12Surface Chemistry
Match List - I with List - II :
Choose the most appropriate answer from the options given below.
Choose the most appropriate answer from the options given below.
MCQ+4 / -12021
13Surface Chemistry
The charges on the colloidal CdS sol and TiO2 sol are, respectively :
MCQ+4 / -12021
14Surface Chemistry
A colloidal system consisting of a gas dispersed in a solid is called a/an :
MCQ+4 / -12021
15Surface Chemistry
For the coagulation of a negative sol, the species below, that has the highest flocculating power is :
MCQ+4 / -12021
16Surface Chemistry
The INCORRECT statements below regarding colloidal solutions is :
MCQ+4 / -12021
17Surface Chemistry
A mixture of gases O2, H2 and CO are taken in
a closed vessel containing charcoal. The graph
that represents the correct behaviour of
pressure with time is :
a closed vessel containing charcoal. The graph
that represents the correct behaviour of
pressure with time is :
MCQ+4 / -12020
18Surface Chemistry
As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the
order :
order :
MCQ+4 / -12020
19Surface Chemistry
For the following Assertion and Reason, the
correct option is
Assertion : For hydrogenation reactions, the
catalytic activity increases from Group 5 to
Group 11 metals with maximum activity shown
by Group 7-9 elements.
Reason : The reactant...
correct option is
Assertion : For hydrogenation reactions, the
catalytic activity increases from Group 5 to
Group 11 metals with maximum activity shown
by Group 7-9 elements.
Reason : The reactant...
MCQ+4 / -12020
20Surface Chemistry
Kraft temperature is the temperature :
MCQ+4 / -12020
21Surface Chemistry
For Freundlich adsorption isotherm, a plot of
log (x/m) (y-axis) and log p (x-axis) gives a
straight line. The intercept and slope for the
line is 0.4771 and 2, respectively. The mass of
gas, adsorbed per gram of adsorbent if the
initial pr...
log (x/m) (y-axis) and log p (x-axis) gives a
straight line. The intercept and slope for the
line is 0.4771 and 2, respectively. The mass of
gas, adsorbed per gram of adsorbent if the
initial pr...
INTEGER+4 / -12020
22Surface Chemistry
Identify the correct molecular picture showing
that happens at the critical micellar
concentration (CMC) of an aqueous solution of
a surfactant ( ◍ polar head; ∼ non-polar tail;
● water).
that happens at the critical micellar
concentration (CMC) of an aqueous solution of
a surfactant ( ◍ polar head; ∼ non-polar tail;
● water).
MCQ+4 / -12020
23Surface Chemistry
Adsorption of a gas follows Freundlich adsorption isotherm. If x is the mass of the gas adsorbed
on mass m of the adsorbent, the correct plot of \({x \over m}\) versus p is :
on mass m of the adsorbent, the correct plot of \({x \over m}\) versus p is :
MCQ+4 / -12020
24Surface Chemistry
Match the following :
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg ...
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg ...
MCQ+4 / -12020
25Surface Chemistry
A sample of red ink (a colloidal suspension) is
prepared by mixing eosin dye, egg white, HCHO
and water. The component which ensures
stability of the ink sample is :
prepared by mixing eosin dye, egg white, HCHO
and water. The component which ensures
stability of the ink sample is :
MCQ+4 / -12020
26Surface Chemistry
Tyndall effect is observed when:
MCQ+4 / -12020
27Surface Chemistry
An ionic micelle is formed on the addition of :
MCQ+4 / -12020
28Surface Chemistry
The mass of gas adsorbed, x, per unit mass of
adsorbate, m, was measured at various pressures,
p. A graph between \(\log {x \over m}\)
and log p gives a
straight line with slope equal to 2 and the intercept
equal to 0.4771. The value of
$$...
adsorbate, m, was measured at various pressures,
p. A graph between \(\log {x \over m}\)
and log p gives a
straight line with slope equal to 2 and the intercept
equal to 0.4771. The value of
$$...
INTEGER+4 / -12020
29Surface Chemistry
Which of the following is used for the
preparation of colloids?
preparation of colloids?
MCQ+4 / -12020
30Surface Chemistry
Amongst the following statements regarding
adsorption, those that are valid are
(a) \(\Delta\)H becomes less negative as adsorption
proceeds
(b) On a given adsorbent, ammonia is
adsorbed more than nitrogen gas
(c) On adsorption, the residu...
adsorption, those that are valid are
(a) \(\Delta\)H becomes less negative as adsorption
proceeds
(b) On a given adsorbent, ammonia is
adsorbed more than nitrogen gas
(c) On adsorption, the residu...
MCQ+4 / -12020