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What is dall effect ?...

What is dall effect ?

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Tyndall effect : When light enters a colloidal solution, it is scattered by the large sized colloidal dispersed phase partic1es. Therefore when light passes through a solution we will be able to see the path of the light as a luminous beam. This is called Tyndall effect.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-SURFACE CHEMISTRY-SHORT ANSWER QUESTIONS
  1. Name the four negatively charged sols.

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  2. Explain the terms helmholtz electrical double layer and zeta potential...

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  3. Explain with a neat sketch the phenomenon of electrophoresis.

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  4. What is electrophoresis ?

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  5. Explain the Coagulation.

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  6. What is dall effect ?

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  7. Explain the phenomenon observed When a beam of light is passed thro...

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  8. Explain the phenomenon observed An electrolyte, NaCI is added to hyd...

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  9. Explain the phenomenon observed An eleetrlc current is passed thro...

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  10. Describe cottrell smoke precipitator with a neat diagram.

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  11. Amoung NaCl, Na(2)SO(4) , Na(3)PO(4) electrolytes , Na(3)PO(4) which i...

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  12. Discuss how a lyophilic colloids protect a lyophobic colloids.

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  13. Discuss the use of colloids in Purification of drinking water .

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  14. Discuss the use of colloids in Tanning.

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  15. Discuss the use of colloids in Medicines.

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  16. Define Gold Number.

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  17. How do emulsifiers stabilize emulsion ? Name two emulsifiers.

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  18. Explain any 2 methods for the preparation of colloids.

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  19. What are emulsion ? How are they classified ? Describe the application...

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  20. What is adsorption ? Explain different types of adsorptions with suit...

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