AP-EAPCET SERIES Chemistry
Adsorption
6 previous year questions.
Volume: 6 Ques
Yield: Medium
High-Yield Trend
5
2023 1
2009 Chapter Questions 6 MCQs
01
PYQ 2009
easy
chemistry ID: ap-eapce
The extent of physisorption of an adsorbate increases with
1
increase in temperature
2
decrease in surface area of the adsorbent
3
decrease in pressure of adsorbate
4
decrease in temperature
02
PYQ 2023
medium
chemistry ID: ap-eapce
The plot of (y-axis) and (x-axis) is a straight line inclined at an angle of 45°. When the intercept, is 10 and pressure is 0.3 atm, the amount of solute in grams adsorbed per gram of adsorbent (log3 = 0.4771) is:
1
30.0
2
2.0
3
3.0
4
20.0
03
PYQ 2023
medium
chemistry ID: ap-eapce
Identify the correct statements about chemisorption:
- I) It is irreversible adsorption
- II) Enthalpy of adsorption is in the range of 20-40 kJ mol
- III) It is unlayered adsorption
- IV) It does not need appreciable activation energy
1
I & IV only
2
I & II only
3
I & III only
4
II & III only
04
PYQ 2023
medium
chemistry ID: ap-eapce
The adsorption of a gas on solid adsorbent follows Freundlich adsorption isotherm. The graph drawn between and at different temperatures X, Y, Z is shown. (X = mass of gas adsorbed, m = mass of adsorbent and p = Pressure of gas). The correct relation between X, Y, Z is:
1
2
3
4
05
PYQ 2023
medium
chemistry ID: ap-eapce
From the following, identify the favorable conditions for physical adsorption:
- I) Large surface area
- II) Low temperatures
- III) High temperatures
- IV) High pressures
1
III, IV only
2
I, III, IV only
3
I, II & IV only
4
I, II & IV only
06
PYQ 2023
medium
chemistry ID: ap-eapce
2.0 g of activated charcoal is added to 100 mL of 0.5 M acetic acid (molar mass 60 g mol ), shaken well and filtered. The concentration of solution is reduced to 0.4 M. How many grams of acetic acid is adsorbed on charcoal per gram?
1
0.1
2
0.2
3
0.3
4
0.15