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According to the adsorption theory of ca...

According to the adsorption theory of catalysis, the speed of the reaction increases because

A

in the process of absorption, the activation energy of the molecules becomes large

B

absorption produces heat which increases the speed of the reaction.

C

absorption lowers the activation energy of the reaction

D

absorption increases the activation energy of the reaction

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The correct Answer is:
C
Absorption lowers the activation energy of reaction because surface energy released during absorption
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According to the adsoption theory of catalysis ,the speed of the reaction increases because:

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Substances which alter the velocity of a reaction by mere presence, without undergoing any change in mass and compossition are termed catalyst and the phenomenon is known as catalysis According to the adsorption theroy of catalysis, the rate of reaction increases because

DISHA PUBLICATION-SURFACE CHEMISTRY-Exercise-2 :Concept Applicator
  1. which gas will be adsorbed on a solid to greater extent ?

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  2. Which of the following adsorption isotherms represents the adsorption...

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  3. According to the adsorption theory of catalysis, the speed of the reac...

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  4. Which of the following is true in respect of chemical adsorption?

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  5. For the graph below, select correct order of temperature?

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  6. Although, nitrogen does not adsorb on a surface at room temperature, i...

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  7. Methylene blue, from its aqueous solution is adsorbed on activated cha...

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  8. In freundlich adsorption isotherm, the value of 1/n is :

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  9. Which one of the following is not applicable to the phenomenon of adso...

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

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  11. In the titration of Cl^(-)ions in solution with AgNO(3) sodium salt of...

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  12. In an experiment, 200 mL of 0.5M oxalic acid is shaken with 10 g of ac...

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  13. The oxidation of oxalic acid by acidified KMnO4 becomes fast as the re...

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  14. A chemical reaction has catalyst X. Hence X

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  15. On adding AgNO(3) solution into KI solution, a negatively charged coll...

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  16. A sol is prepared by addition of excess of AgNO(3) solution in KI solu...

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  17. The gold numbers of protective colloids A,B,C and D are 0.04, 0.004, 1...

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  18. which of the following statement is not true about the oil - in - wat...

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  19. Select incorrect statement

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  20. for the coagulation of 50 mL of ferric hydroxide sol 10 mL of 0.5 M KC...

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