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MHT-CET Adsorption and Colloids — practice questions

Explore 77 free Adsorption and Colloids questions in MHT-CET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Adsorption and Colloids questions and exercises with answers

Showing questions 1–30 of 77.

The accumulation of a substance on the surface of a solid or liquid is calledRead the answer and worked solution →The material on whose surface adsorption takes place is called theRead the answer and worked solution →In adsorption, the substance that gets held on the surface is known as theRead the answer and worked solution →Adsorption occurs because the surface molecules of a solid or liquid experienceRead the answer and worked solution →The removal of an adsorbed substance from the surface on which it was adsorbed is calledRead the answer and worked solution →Adsorption of gases on a solid is caused mainly by which kind of forces in physisorption?Read the answer and worked solution →Water taken up by cotton wool is an example ofRead the answer and worked solution →When adsorption and absorption occur together, the process is calledRead the answer and worked solution →Adsorption of dye molecules from methylene blue solution by charcoal makes the solutionRead the answer and worked solution →Heat evolved during physisorption is of the same order as the heat ofRead the answer and worked solution →At high pressure, physisorbed gas can formRead the answer and worked solution →Who first investigated chemisorption in 1916?Read the answer and worked solution →Chemisorption takes place through which type of forces?Read the answer and worked solution →Chemisorption is usually described asRead the answer and worked solution →Physisorption differs from chemisorption in that physisorption isRead the answer and worked solution →Chemisorption forms a layer that isRead the answer and worked solution →The heat of physisorption typically lies in the rangeRead the answer and worked solution →Physisorption is favoured atRead the answer and worked solution →Nitrogen is physically adsorbed on iron at low temperature but at high temperature it formsRead the answer and worked solution →Which pair is an example of chemisorption?Read the answer and worked solution →Which gas is adsorbed to the largest extent by a solid because it liquefies easily?Read the answer and worked solution →Easily liquefiable gases are adsorbed more because they have a highRead the answer and worked solution →Silica gel and charcoal are effective adsorbents because they areRead the answer and worked solution →The extent of adsorption increases with increase inRead the answer and worked solution →Adsorption of a gas on a solid is favoured by low temperature because the process isRead the answer and worked solution →At very high pressure, the extent of adsorption becomesRead the answer and worked solution →Which scientist proposed the empirical adsorption equation x/m = kP^(1/n)?Read the answer and worked solution →In the Freundlich isotherm, a plot of log(x/m) against log P gives a straight line whose slope isRead the answer and worked solution →In the Freundlich plot of log(x/m) versus log P, the intercept on the y-axis equalsRead the answer and worked solution →In the Freundlich equation, the factor 1/n has values ranging fromRead the answer and worked solution →

Worked practice questions

The accumulation of a substance on the surface of a solid or liquid is called

  1. Effusion
  2. Absorption
  3. Desorption
  4. Adsorption
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Correct answer: D. Adsorption

Surface accumulation of a gas or dissolved substance is the definition of adsorption.

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The material on whose surface adsorption takes place is called the

  1. adsorbate
  2. catalyst
  3. adsorbent
  4. promoter
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Correct answer: C. adsorbent

The bulk material that holds the molecules on its surface is the adsorbent, while the held substance is the adsorbate.

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In adsorption, the substance that gets held on the surface is known as the

  1. adsorbent material
  2. dispersion medium
  3. reaction inhibitor
  4. adsorbate species
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Correct answer: D. adsorbate species

The species accumulating on the surface is the adsorbate.

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