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How are colloids classified on the basis...

How are colloids classified on the basis of
(i) physical states of components
(ii) nature of dispersion medium
(iii) interaction between dispersed phase and dispersion medium ?

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ICSE-SURFACE CHEMISTRY -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) ( LONG ANSWER QUESTIONS)
  1. How does electrophoresis provide information about the sign of charge ...

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  2. Gelatin which is a peptide is added in ice-creams. What can be its ro...

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  3. Colloidal sulphur exhibits Brownian movement while a solution of sulph...

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  4. Describe briefly how gold sols can be prepared ?

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  5. Define Gold number.

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  6. Name any two protective colloids.

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  7. Why is the cotton cloth required to be treated with a mordant, before ...

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  8. In what respect electrophoresis differ from electrolysis ?

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  9. What are enzymes inhibitors ?

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  10. Explain the term heterogeneous catalysis. Give examples of heterogeneo...

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  11. What is the role of adsorption in heterogeneous catalysis?

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  12. Explain the terms: (i) Active centres (ii) inhibitors (iii) promote...

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  13. How are colloids classified on the basis of (i) physical states of ...

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  14. Give two chemical methods for the preparation of colloidal solutions.

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  15. What are emulsions ? What are their different types ? Give an example ...

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  16. What is demulsification ?

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  17. Give four uses of emulsions.

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  18. What do you mean by STDs?

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  19. Describe some features of catalysis by zeolites. (i) Medicines are ...

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  20. Explain either Brownian movement or Tyndall effect.

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