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Define each of the following terms (i)...

Define each of the following terms
(i) Micelles (ii) Peptization (iii) Desorption

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ICSE-SURFACE CHEMISTRY -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) ( SHORT ANSWER QUESTIONS)
  1. Distinguish between multimolecular and macromolecular colloids.

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  2. What are multimolecular and macromolecular colloids? Give one example ...

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  3. Define each of the following terms (i) Micelles (ii) Peptization (ii...

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  4. Distinguish between mutlimolecular, macromolecular and associated coll...

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  5. What are micelles ? Give an example of a micellers system.

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  6. Write three differences between true solutions and colloidal solutions...

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  7. How are the following sols produced ? (a) Sulfur sol (b) Collodion.

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  8. Explain briefly dialysis.

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  9. Explain the following terms: Electrodialysis

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  10. Explain the following terms: Phases of a colloidal solution.

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  11. Define Gold number.

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  12. Special type of filter papers are used for the filtration of colloidal...

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  13. Define coagulation.

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  14. Bleeding from a fresh cut can be stopped by applying alum. Give reason...

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  15. Briefly describe the Bredig's arc method for the preparation of lyopho...

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  16. What is Tyndall effect ? Mention one of its applications.

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  17. Explain what is meant by Tyndall effect ?

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  18. What happens when freshly precipitated Fe(OH)3 is shaken with small am...

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  19. Describe briefly the purification of a colloid by dialysis.

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  20. Explain the following terms: Tyndall effect

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