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Surface chemistry TEST PAPER-02 Class 12 Notes | EduRev

Class 12 : Surface chemistry TEST PAPER-02 Class 12 Notes | EduRev

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CBSE TEST PAPER-02 
CLASS - XII CHEMISTRY (Surface chemistry) 
Topic: Factors affecting adsorption, Application of adsorption , Homogeneous and 
hetrogeneous catalysis  
1. Name the factors which influence the extent of adsorption of a gas on solid. [2] 
2. What is adsorption isotherm? [1] 
3. H ? for chemisorption is high .why? [1] 
4. Explain Freundlich adsorption isotherm. [2] 
5. Give an equation showing variation of extent of adsorption with concentration
of a solution? [1] 
6. Name the adsorbent used [3] 
a) To remove coloured impurities from sugar solution.
b) In gas masks to remove chlorine.
c) To remove moisture from air.
7. Define the terms – catalysis and catalyst. [2] 
8. What are positive and negative catalysts? [1] 
9. What do you mean by the term promoter? Give an example. [1] 
10. What are homogeneous and heterogeneous catalysis? Give example. [3]

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Dec 24, 2013
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