Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Surface Chemistry question

2011 · Shift 1 · Q1
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Advanced
  3. /Chemistry
  4. /Surface Chemistry
  5. /2011 · Shift 1 · Q1

Surface Chemistry question

2011 · Shift 1 · Q1

JEE AdvancedChemistrySurface ChemistryMultiple correct+2 / −0.5
The correct statement(s) pertaining to the adsorption of a gas on a solid surface is (are)
  1. A
    Adsorption is always exothermic
  2. B
    Physisorption may transform into chemisorption at high temperature
  3. C
    Physisorption increases with increasing temperature but chemisorption decreases with increasing temperature
  4. D
    Chemisorption is more exothermic than physisorption, however it is very slow due to higher energy of activation
PreviousNext

More from Surface Chemistry

  • Among the electrolytes Na 2​ SO 4​, CaCl 2​, Al 2​(SO 4​) 3​ and NH 4​ Cl, the most effective coagulating agent for Sb 2​ S 3​ sol is2009 · MCQ
  • Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is:2008 · MCQ
  • Statement 1 : Micelles are formed by surfactant molecules above the critical micellar concentration (CMC). Statement 2 : The conductivity of a solution having surfactant molecules decreases sharply at the CMC.2007 · MCQ
  • Adsorption of phenol from its aqueous solution on to fly ash obeys Freundlich isotherm. At a given temperature, from 10mgg−1 and 16mgg−1 aqueous phenol solutions, the concentrations of…2025 · Numerical
  • To form a complete monolayer of acetic acid on 1 g of charcoal, 100 mL of 0.5M acetic acid was used. Some of the acetic acid remained unadsorbed. To neutralize the unadsorbed acetic acid, 40…2024 · Numerical
  • Consider the following statements related to colloids. (I) Lyophobic colloids are not formed by simple mixing of dispersed phase and dispersion medium. (II) For emulsions, both the dispersed phase and the dispersion medium are liquid.…2023 · MCQ
  • The correct option(s) related to adsorption processes is(are)2022 · Multiple correct
  • The correct statement(s) related to colloids is (are)2021 · Multiple correct