1
IIT-JEE 2012 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2

The given graphs/data I, II, III and IV represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following choice(s) about I, II, III and IV is(are) correct?

IIT-JEE 2012 Paper 2 Offline Chemistry - Solid State & Surface Chemistry Question 12 English 1

IIT-JEE 2012 Paper 2 Offline Chemistry - Solid State & Surface Chemistry Question 12 English 2

IIT-JEE 2012 Paper 2 Offline Chemistry - Solid State & Surface Chemistry Question 12 English 3

IIT-JEE 2012 Paper 2 Offline Chemistry - Solid State & Surface Chemistry Question 12 English 4

A
I is physisorption and II is chemisorption.
B
I is physisorption and III is chemisorption.
C
IV is chemisorption and II is chemisorption.
D
IV is chemisorption and III is chemisorption.
2
IIT-JEE 2012 Paper 1 Offline
MCQ (More than One Correct Answer)
+2
-0.5
Choose the correct reason for the stability of the Iyophobic colloidal particles
A
Preferential adsorption of ions on their surface from the solution
B
Preferential adsorption of solvent on their surface from the solution
C
Attraction between different particles having opposite charges on their surface
D
Potential difference between the fixed layer and the diffused layer of opposite charges around the colloidal particles.
3
IIT-JEE 2011 Paper 1 Offline
MCQ (More than One Correct Answer)
+2
-0.5
The correct statement(s) pertaining to the adsorption of a gas on a solid surface is (are)
A
Adsorption is always exothermic
B
Physisorption may transform into chemisorption at high temperature
C
Physisorption increases with increasing temperature but chemisorption decreases with increasing temperature
D
Chemisorption is more exothermic than physisorption, however it is very slow due to higher energy of activation
4
IIT-JEE 2009 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

The correct statement(s) regarding defects in solids is (are)

A
Frenkel defect is usually favoured by a very small difference in the sizes of cation and anion.
B
Frenkel defect is a dislocation defect.
C
Trapping of an electron in the lattice leads to the formation of F-centre.
D
Schottky defects have no effect on the physical properties of solids.
JEE Advanced Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12