2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-79

  • question_answer
    Physisorption is reversible in nature. The extent of adsorption increases with the increase of surface area of the adsorbent. In physisorption the molecules of gases adsorbed are attached to adsorbent by

    A)  chemical force  

    B)  electrostatic force      

    C)  van der Waal?s force     

    D)  None of these

    Correct Answer: C

    Solution :

    Physisorption is a process in which the electronic structure of the atom or molecule is barely perturbed upon adsorption. Gaseous molecules are attached to adsorbent by weak van der Wall?s force of attraction. Even though the interaction energy is very weak, \[(i.e.,\,\,10-100 MeV)\]


You need to login to perform this action.
You will be redirected in 3 sec spinner