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How is the protective power of a lyophil...

How is the protective power of a lyophilic sol expressed ?

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It is expressed in terms of gold number.
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The protective power of lyophilic sol is

Lyophilic sols are

Lyophilic sol are

Assertion : Lyophilic colloids such as starch, gelatin etc, act as protective colloids. Reason : Protective power of lyophilic coloids is expressed in terms of gold number.

Greater is the protective power of lyophilic colloid

Lyophilic sols are :

DINESH PUBLICATION-SURFACE CHEMISTRY -QUESTION FROM BOARD EXAMINATIONS
  1. How can you make dialysis fast ?

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  2. Which of the following is more effective in coauglating positively cha...

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  3. How is the protective power of a lyophilic sol expressed ?

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  4. Give one example of oil in water type emulsion.

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  5. Gold numbers of gelatin and haemoglobins are 0.005 and 0.03 respective...

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  6. What will happen if equimolar solution of positively and negatively ch...

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  7. What will happen if gelatin is added to a goal sol ?

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  8. What is collodion ?

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  9. Give one example of an opaque that is colloidal and an example of opaq...

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  10. Why does smoke from a fire often has a blue tinge ?

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  11. Explain the curding of milk when it is sour.

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  12. What is purple of casis ?

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  13. how will you disitinguish between a true solution and a colloidal solu...

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  14. What happens if an electric field is applied to a colloidal sol ?

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  15. How does chemical adsorption of a gas on the surface of a solid very w...

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  16. How will you prepare a colloidal sol of arsenic suplhide ?s

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  17. Which of the following has minimum flocculation value :-

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  18. What is Milk of Magnesia? For what purpose, is it used ?

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  19. What are surfactants ?

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  20. What is iso-electric point of colloids ?

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