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Adsorption is accompanied by the evoluti...

Adsorption is accompanied by the evolution of heat. Thus, according to Le Chatelier's principle the amount of surface adsorbed should
(i) decrease with increase in temperature
(ii) decrease with decrease in temperature
(iii) increase with increase in temperature
(iv) increase with decrease in temperature

A

increase with decrease in temperature

B

increase with increase in temperature

C

decrease with decrease in temperature

D

decrease with increase in temperature

Text Solution

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The correct Answer is:
A
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MARVEL PUBLICATION-SURFACE CHEMISTRY-MULTIPLE CHOICE QUESTIONS - HIGHER LEVEL
  1. Which of the following is less than zero during adsorption?

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  2. Adsorption is the tendency of accumulation of molecular species at the...

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  3. Adsorption is accompanied by the evolution of heat. Thus, according to...

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  4. At low pressure, the fraction of the surface covered follows

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  5. At high pressure, the entire surface gets covered by a monomolecular l...

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  6. Which of the following statements is incorrect?

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  7. During adsorption

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  8. which of the following statements is not correct ?

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  9. The isoelectric point of a colloidally dispersed material is the pH va...

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  10. peptization involves :

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  11. Which of the following is not the property of hydrophilic solutions ?

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  12. Which one of the following characteristics is not correct for physical...

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  13. The dispersed phase in colloidal iron (III) hydroxide and collodial go...

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

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  15. In the fermentation of sugar, glucose is converted into alcohol and CO...

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  16. The volume of gases H(2), CH(4), CO(2) and NH(3) adsorbed by 1 g of ch...

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  17. Protons accelerate the hydrolysis of esters . This is an example os :

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  18. Which of the following is correct ?

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  19. Colloidal solution in which the dispersed phase has little affintiy fo...

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  20. Collioidal sols can be purified by

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