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In physisorption adsorbent does not show...

In physisorption adsorbent does not show specificity for any particular gas because ……. .

A

Involved van der Waals' forces are universal

B

gases involved behave like ideal gases

C

enthalpy of adsorption is low

D

it is a reversible process

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The correct Answer is:
A
In physisorption adsorbent does not show specificity for any particular gas because involved van der Waals' forces are universal . It means extent of van der Waals' interaction between adsorbate and adsorbent is constant for all gases.
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NCERT EXEMPLAR-SURFACE CHEMISTRY-Surface Chemistry
  1. Which is not correct for physical adsorption ?

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  2. Physical adsorption of a gaseous species may change to chemical adsorp...

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  3. In physisorption adsorbent does not show specificity for any particula...

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  4. Which of the following is an example of absorption?

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  5. On the basis fo data given below predict which of the following gases ...

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  6. In which of the following reactions heterogeneous catalysis is involve...

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  7. At high concentration of soap in water, soap behaves as …… .

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  8. Which of the following will show Tyndall effect?

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  9. Method by which lyophobic sol can be protected.

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  10. Freshly prepared precipitate sometimes gets converted to colloidal sol...

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  11. Which of the following electrolytes will have maximum coagulating valu...

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  12. A colloidal system having a solid substance as a dispersed phase and a...

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  13. The values of colligative properties of colloidal solution are of smal...

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  14. Arrange the following diagrams in correct sequence of steps involved i...

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  15. Which of the following process is responsible for the formation of del...

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  16. Which of the following curves is in according with Freundlich adsorpti...

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  17. Which of the following process is not responsible for the presence of ...

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  18. Which of the following phenomenon is applicable to the process shown i...

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  19. Which of the following options are correct?

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  20. Which of the following statements are correct about solid catalyst?

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