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Write any two characteristics of Chemiso...

Write any two characteristics of Chemisorption.

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Pt and Pd form inert electrodes i.e, they are not attacked by the ions of the electrolyte or the products of electrolysis. Hence, they are used as electrodes for carrying out electrolysis.
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NCERT-SURFACE CHEMISTRY-Exercise
  1. Write any two characteristics of Chemisorption.

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  2. Why does physisorption decrease with increase of temperature ?

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  3. Why are powdered substances more effective adsorbent than their crysta...

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  4. In Haber's process. Hydrogen is obtained by reacting methane with stea...

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  5. Why is ester hydrolysis slow in the beginning and becomes faster after...

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  6. What is the role of desorption in the process of catalysis?

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  7. What modification can you suggest in the Hardy Schulze law?

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  8. Why is it essential to wash the precipitate with water before estimati...

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  9. Distinguish between the meaning of the terms adsorption and absorption...

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  10. Write differences between physisorption and chemisorption.

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  11. Give reason why a finely divided substance is more effective as an ads...

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  12. What are the factors which influence the adsorption of a gas on a soli...

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  13. What is an adsorption isotherm? Describe Freundlich adsorption isother...

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  14. What do you understand by activation of adsorption ? How is it achieve...

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  15. What role does adsorption play in heterogeneous catalysis ?

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  16. Why is adsorption always exothermic ?

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  17. How are the colloidal solutions classified on the the basis of physica...

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  18. Discuss the effect of pressure and temperature on the adsorption of ga...

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  19. What are lyophilic and lyophobic sols?Give one example of each type ? ...

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  20. What is the difference between multimolecular and macromolecular colli...

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