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Which of the following is an example of a physical adsorption process?

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Question: Which of the following is an example of a physical adsorption process?

Options:

  1. Catalytic cracking
  2. Gas chromatography
  3. Ion exchange
  4. Covalent modification

Correct Answer: Gas chromatography

Solution: 

Gas chromatography relies on physical adsorption where the sample components are separated based on their different affinities to the stationary phase.

Which of the following is an example of a physical adsorption process?

Practice Questions

Q1
Which of the following is an example of a physical adsorption process?
  1. Catalytic cracking
  2. Gas chromatography
  3. Ion exchange
  4. Covalent modification

Questions & Step-by-Step Solutions

Which of the following is an example of a physical adsorption process?
  • Step 1: Understand what physical adsorption means. It is when molecules stick to a surface without any chemical reaction.
  • Step 2: Learn about gas chromatography. It is a method used to separate different components of a gas mixture.
  • Step 3: Identify the role of the stationary phase in gas chromatography. The stationary phase is the material that the gas molecules stick to.
  • Step 4: Recognize that in gas chromatography, the separation of components happens because they have different strengths of attraction to the stationary phase.
  • Step 5: Conclude that gas chromatography is an example of a physical adsorption process because it relies on the sticking of gas molecules to a surface without changing their chemical structure.
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