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Surface Chemistry question

2017 · Shift 2 · Q13
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Surface Chemistry question

2017 · Shift 2 · Q13

JEE AdvancedChemistrySurface ChemistryMultiple correct+4 / −1
The correct statement(s) about surface properties is (are)
  1. A
    Adsorption is accompanied by decrease in ethalpy and decrease in entropy of the system
  2. B
    The critical temperatures of ethane and nitrogen are 563K563K563K and 126K,126K,126K, respectively. The adsorption of ethane will be more than that of nitrogen on same amount of activated charcoal at a given temperature
  3. C
    Cloud is an emulsion type of colloid in which liquid is dispersed phase and gas is dispersion medium
  4. D
    Brownian motion of colloidal particles does not depend on the size of the particles but depends on viscosity of the solution
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