Adsorption and Absorption Quiz
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Questions and Answers

Which of the following best describes absorption?

  • The movement of drug into the bloodstream.
  • A fluid permeates or is dissolved by a liquid or solid. (correct)
  • The tendency for materials to locate at a solid surface in a concentration different than that found in the surrounding medium.
  • Adhesion of molecules to a surface.

    • What is the key characteristic of adsorption?

  • It involves the adhesion of molecules to a surface.
  • It describes the tendency for materials to locate at a solid surface in a concentration different than that found in the surrounding medium.
  • It is reversible, as it can be influenced by factors like heating or pH changes. (correct)
  • It involves the movement of drug into the bloodstream.

    • What is the primary function of Enterosgel Intestinal Adsorbent?

  • Adhesion of molecules to a surface.
  • Treatment of diarrhea through oral intestinal adsorption. (correct)
  • Movement of drug into the bloodstream.
  • 70% Polymethylsiloxane & 30% Purified water.

    • What distinguishes absorption from adsorption?

    <p>Absorption involves the movement of substance into another compartment, while adsorption involves the tendency for materials to locate at a solid surface.</p> Signup and view all the answers

    What is the primary mechanism by which adsorption occurs in porous molecules?

    <p>Van der Waals forces</p> Signup and view all the answers

    Which of the following materials is a hard, granular, and porous adsorbent?

    <p>Silica gel</p> Signup and view all the answers

    What type of compounds are typically hydrophilic and polar in nature?

    <p>Oxygen-containing compounds</p> Signup and view all the answers

    What is the main requirement for adsorbents to have increased exposed surface area for adsorption?

    <p>Small pore diameters and high thermal stability</p> Signup and view all the answers

    Which type of compounds are typically hydrophobic and non-polar in nature?

    <p>Carbon-based compounds</p> Signup and view all the answers

    What is the primary reason for the use of activated alumina in adsorption?

    <p>Moisture adsorption</p> Signup and view all the answers

    What type of interactions are responsible for adsorption in porous molecules?

    <p>Weak physical alterations</p> Signup and view all the answers

    In which class of compounds are polar or non-polar functional groups present in a porous polymer matrix?

    <p>Polymer-based compounds</p> Signup and view all the answers

    Study Notes

    Absorption and Adsorption

    • Absorption is a process in which a substance is taken in by a cell or organism, whereas adsorption is a surface phenomenon where a substance binds to a surface.

    Adsorption Characteristics

    • The key characteristic of adsorption is the concentration of a substance at a surface or interface.

    Enterosgel Intestinal Adsorbent

    • The primary function of Enterosgel Intestinal Adsorbent is to absorb toxins and other harmful substances from the gut.

    Absorption vs Adsorption

    • Absorption involves the uptake of a substance into the bulk of a material, whereas adsorption involves the concentration of a substance at a surface.

    Adsorption Mechanism

    • The primary mechanism by which adsorption occurs in porous molecules is through van der Waals interactions or electrostatic forces.

    Adsorbent Materials

    • Activated carbon is a hard, granular, and porous adsorbent.

    Hydrophilic and Hydrophobic Compounds

    • Hydrophilic compounds are typically polar in nature, whereas hydrophobic compounds are typically non-polar in nature.

    Adsorbent Surface Area

    • The main requirement for adsorbents to have increased exposed surface area for adsorption is a high surface-to-volume ratio.

    Functional Groups in Polymers

    • Polar or non-polar functional groups are present in a porous polymer matrix in the class of compounds known as polymeric adsorbents.

    Activated Alumina

    • The primary reason for the use of activated alumina in adsorption is its high surface area and affinity for binding ions and molecules.

    Adsorption Interactions

    • The primary interactions responsible for adsorption in porous molecules are van der Waals interactions and electrostatic forces.

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    Related Documents

    Adsorption (PY4030/PY5130) PDF

    Description

    Test your knowledge on the differences between adsorption and absorption, understanding of adsorption phenomena, medical and pharmaceutical applications, and factors controlling adsorption through Langmuir adsorption isotherms.

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