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Surface Chemistry 3 Mark Creative Question Paper With Answer Key

12th Standard

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Chemistry

Time : 01:30:00 Hrs
Total Marks : 45

     3 Marks 

    15 x 3 = 45
  1. Give any three application of adsorption.

  2. Write a note.
    (i) Positive catalyst
    (ii) Negative catalyst

  3. Write a note on auto catalysis?

  4. What are active centres?

  5. What are the important concepts of catalysis that adsorption theory explains?

  6. Give three examples of enzyme catalyzed reactions.

  7. Give an example for a reaction catalysed by nano particles

  8. Explain the advantages of using nano catalyst.

  9. How are colloidal solution of ink and graphite prepared?

  10. Write a note on Ultrafilteration?

  11. What are the advantages of Brownian movement?

  12. How is coagulation brought about by addition of electrolytes?

  13. Define Gold number.

  14. What are the tests used to identify the type of emulsion?

  15. Name various techniques by which a colloid can be deemulsified.

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