IPU-CET SERIES Chemistry
Surface Chemistry
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
2
2017 1
2016 Chapter Questions 3 MCQs
01
PYQ 2016
medium
chemistry ID: ipu-cet-
H can be added to ethylene in the presence of a heterogeneous catalyst such as solid. What might account for the initial attraction between the hydrogen molecules and the solid platinum?
1
Hydrogen bonding
2
Metallic bonding
3
Van der Waals' attractions
4
The plasma continuum effect
02
PYQ 2017
medium
chemistry ID: ipu-cet-
Select the incorrect statement.
1
Physical adsorption is reversible, while chemical is irreversible.
2
High pressure favors physical adsorption while low pressure favors chemical adsorption.
3
Physical adsorption is not specific, while chemical adsorption is highly specific.
4
High activation energy is required in chemical adsorption.
03
PYQ 2017
medium
chemistry ID: ipu-cet-
Which of the following statement is applicable for the Tyndall effect?
1
The diameter of the dispersed particle is much smaller than the wavelength of the light used
2
The diameter of the dispersed phase is much smaller than the wavelength of the light used
3
The refractive indices of the dispersed phase is much smaller than the wavelength of the light used
4
The refractive indices of the dispersed phase and the dispersion medium must differ greatly in