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Which of the following statements is incorrect regarding physissorptions ?

Options

  1. AIt occurs because of vander Waal's forces.
  2. BMore easily liquefiable gases are adsorbed readily.
  3. CUnder high pressure it results into multi molecular layer on adsorbent surface.
  4. DEnthalpy of adsorption ( H _ adsorption ) is low and positive.

Correct answer

D. Enthalpy of adsorption ( H _ adsorption ) is low and positive.

Step-by-step solution

Enthalpy of adsorption regarding physissorption is not positive and it is negative.

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