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Which of the following statements is inc...

Which of the following statements is incorrect regarding physisorption ?

A

It occurs because of van der Waals forces

B

More easily liquefiable gases are adsorbed readily

C

Under high pressure it results into multimolecular layer on adsorbent surface

D

Enthalpy of adsorption is low and positive.

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MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. In Langmuir's model of adsorption of a gas an a solid surface.

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  2. Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10...

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  3. Which of the following statements is incorrect regarding physisorption...

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  4. For a linear plot of log (x/m) versus log P in a Freundlich adsorption...

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  5. The coagulating power of electrolytes having ions Na^+, Al^(3+) and Ba...

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  6. 3g of activated charcoal was added to 50 mL of acetic acid solution (0...

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  7. For a linear plot of log (x/m) versus log P in a Freundlich adsorption...

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  8. On adding one mL of solution of 10% NaCl to 100 mL of gold sol in the ...

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  9. When an excess and a very dilute aqueous solution of KI is added to a ...

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  10. Which one of the following impurities present in colloidal solution ca...

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  11. The ion that is more effective for coagulatin of As2S3 sol is

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  12. The dispersed phase and dispersion medium in soap lather are respectiv...

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  13. Which of the following relation is/ are correct for Langmuir adsorptio...

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  14. The best coagulant for the precipitation of Fe(OH)3 sol is

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  15. Which is correct about physical adsorption ?

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  16. During the adsorption of a gas on the surface of a solid which of the ...

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  17. Negatively charged colloidal solution of clay in water will need for p...

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  18. Identify the positively charged sol.

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  19. The stability of a lyophobic colloid is due to

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  20. The amount of electrolytes required to coagulate a given amount of AgI...

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