This chapter is currently out of syllabus
1
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
According to Freundlich adsorption isotherm, which of the following is correct ?
A
$${x \over m} \propto {p^0}$$
B
$${x \over m} \propto {p^1}$$
C
$${x \over m} \propto {p^{1/n}}$$
D
All the above are correct for different ranges of pressure
2
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which of the following statements is incorrect regarding physisorptions ?
A
It occurs because of vander Waal’s forces.
B
More easily liquefiable gases are adsorbed readily.
C
Under high pressure it results into multi molecular layer on adsorbent surface.
D
Enthalpy of adsorption ($$\Delta H_{adsorption}$$ ) is low and positive
3
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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
A
D < A < C < B
B
C < B < D < A
C
A < C < B < D
D
B < D < A < C
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In Langmuir’s model of adsorption of a gas on a solid surface
A
the rate of dissociation of adsorbed molecules from the surface does not depend on the surface covered
B
the adsorption at a single site on the surface may involve multiple molecules at the same time
C
the mass of gas striking a given area of surface is proportional to the pressure of the gas
D
the mass of gas striking a given area of surface is independent of the pressure of the gas
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12