Adsorption and Colloids — Practice Quiz
Maharashtra Board · Class 11 · Chemistry
Try a 4-question quiz on Adsorption and Colloids for Maharashtra Board Class 11 Chemistry: tap an answer to check it and see why.
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Quick Quiz: Adsorption and Colloids
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What is the process called when gas molecules accumulate on the surface of a solid due to weak van der Waals forces?
In the Freundlich adsorption isotherm equation x/m = kP^(1/n), what does 'x' represent?
Which type of colloid has particles with great affinity for the dispersion medium?
The scattering of light by colloidal particles making the light path visible is called:
Sample Questions
Which of the following factors affect the adsorption of gases on solids?
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Nature of adsorbate, Surface area of adsorbent, Temperature, Pressure of gas
All four factors significantly affect gas adsorption: easily liquefiable gases adsorb more, larger surface area increases adsorption, low temperature favors adsorption, and higher pressure increases adsorption.
Which of the following are characteristics of chemisorption?
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Involves chemical bonds, Highly specific, Forms monomolecular layer
Chemisorption involves chemical bond formation, is specific to reactants, forms single molecular layers, and has high heat of adsorption (40-200 kJ/mol).
Milk is an example of which type of colloid?
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Emulsion (oil in water)
Milk is an emulsion where fat particles (oil) are dispersed in water, making it an oil-in-water type emulsion.
The process of removing dissolved impurities from colloidal solution using a semipermeable membrane is:
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Dialysis
Dialysis uses a semipermeable membrane to separate small ions and molecules from larger colloidal particles, purifying the colloidal solution.
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