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Write one method each for the preparatio...

Write one method each for the preparation of gold and sulphur sol.

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CHHAYA PUBLICATION-SURFACE CHEMISTRY-WARM UP EXERCISE
  1. What is peptisation ?

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  2. Give examples of any two colloids that are prepared by the Bredig's ar...

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  3. Write one method each for the preparation of gold and sulphur sol.

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  4. Write a method of preparation of ferric hydroxide sol.

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  5. What is dialysis? Give one application of it.

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  6. On which principle does an artificial kidney work?

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  7. Give an example of a sol that can be prepared both by Bredig's arc and...

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  8. What is Brownian movement? Why do colloidal particles do not settle do...

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  9. Why are the magnitudes of colligative properties of colloidal solution...

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  10. You are supplied with two solutions, one of which is a soap solution a...

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  11. Why does the path of light become visible when passed through a colloi...

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  12. Why is Tyndall effect not very distinct in the case of lyophilic collo...

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  13. Define the Electrophoresis

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  14. Define the Cataphoresis

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  15. Define the Anaphoresis

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  16. Define the Electro-osmosis .

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  17. Give an example each of an sol exhibiting cataphoresis and anaphoresis...

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  18. What do you mean by isoelectric point of colloid ? Mention one importa...

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  19. Why is a medicine in colloidal state found to be very effective ?

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  20. Addition of an excess solution of AgNO(3), to a solution of KI gives a...

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