Adsorption and Colloids — Important Questions
Maharashtra Board · Class 11 · Chemistry
41 important questions from Adsorption and Colloids for Maharashtra Board Class 11 Chemistry, with answers. Includes multiple choice and multiple correct.
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Important Questions from Adsorption and Colloids
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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