Surface Chemistry

Q. In which of the following processes is adsorption utilized? (2023)
  • A. Water purification
  • B. Sublimation
  • C. Distillation
  • D. Filtration
Q. The Langmuir isotherm assumes that adsorption occurs at specific sites on the surface. What does this imply? (2020)
  • A. Adsorption is uniform.
  • B. Adsorption is multilayered.
  • C. Adsorption is monolayered.
  • D. Adsorption is temperature dependent.
Q. The Langmuir isotherm assumes that adsorption occurs at specific sites on the surface. What is the maximum coverage called? (2021)
  • A. Saturation
  • B. Monolayer
  • C. Multilayer
  • D. Equilibrium
Q. What is the effect of increasing temperature on chemisorption? (2022)
  • A. Increases adsorption
  • B. Decreases adsorption
  • C. No effect
  • D. Depends on the gas
Q. What is the effect of temperature on chemisorption? (2023) 2023
  • A. Increases with temperature
  • B. Decreases with temperature
  • C. Remains constant
  • D. Depends on the gas
Q. What is the primary factor affecting the rate of adsorption of a gas on a solid surface?
  • A. Temperature
  • B. Pressure
  • C. Surface area
  • D. Molecular weight
Q. What is the primary mechanism of adsorption in activated charcoal?
  • A. Chemical bonding
  • B. Physical adsorption
  • C. Capillary action
  • D. Electrostatic attraction
Q. What is the primary process involved in adsorption? (2023)
  • A. Chemical reaction
  • B. Physical attraction
  • C. Evaporation
  • D. Condensation
Q. What is the primary process involved in the adsorption of gases on solid surfaces? (2022) 2022
  • A. Diffusion
  • B. Condensation
  • C. Chemical reaction
  • D. Van der Waals forces
Q. What is the term for the energy required to separate an adsorbate from an adsorbent? (2023)
  • A. Adsorption energy
  • B. Desorption energy
  • C. Activation energy
  • D. Bond energy
Q. What is the term for the maximum amount of solute that can be adsorbed on a surface? (2021)
  • A. Saturation point
  • B. Adsorption capacity
  • C. Equilibrium constant
  • D. Surface tension
Q. What is the term for the process where a solid adsorbs a liquid or gas? (2022)
  • A. Absorption
  • B. Adsorption
  • C. Desorption
  • D. Sorption
Q. What type of adsorption is characterized by the formation of a chemical bond? (2019)
  • A. Physisorption
  • B. Chemisorption
  • C. Desorption
  • D. Multilayer adsorption
Q. Which factor does NOT affect the rate of adsorption? (2023)
  • A. Temperature
  • B. Surface area of adsorbent
  • C. Concentration of adsorbate
  • D. Color of adsorbent
Q. Which of the following is a characteristic of adsorption? (2023)
  • A. It is a bulk phenomenon.
  • B. It is a surface phenomenon.
  • C. It occurs at high temperatures only.
  • D. It is always exothermic.
Q. Which of the following is an example of physisorption? (2021) 2021
  • A. Adsorption of hydrogen on palladium
  • B. Adsorption of water on silica gel
  • C. Adsorption of oxygen on activated charcoal
  • D. Adsorption of ammonia on copper
Q. Which of the following statements is true about adsorption? (2023)
  • A. It is a bulk phenomenon
  • B. It is a surface phenomenon
  • C. It occurs only in gases
  • D. It is always exothermic
Q. Which of the following statements is true regarding the Freundlich adsorption isotherm? (2020) 2020
  • A. It is applicable to monolayer adsorption.
  • B. It assumes a uniform surface.
  • C. It is a linear relationship.
  • D. It describes heterogeneous adsorption.
Showing 1 to 18 of 18 (1 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely