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What are lyophilic and lyophobic sols ? ...

What are lyophilic and lyophobic sols ? Give one example of each. Why lyophobic sol is easily coagulated ?

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Lyophilic colloids
Lyophilic colloids are those in which there is strong attraction between dispersed phase and dispersion medium. For example, starch and rubber.
Lyophobic colloids Lyophobic colloids are those in which there is no attraction between dispersed phase and dispersion medium. For example, `Al (OH)_3, Fe(OH)_3`.
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OMEGA PUBLICATION-SURFACE CHEMISTRY-MULTIPLE CHOICE QUESTIONS
  1. What are lyophilic and lyophobic sols ? Give one example of each. Why ...

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  2. How will you convert propyne into propan-2-one

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  3. How will you convert ethyne into vinyl cyanide.

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  4. Draw structure of 1,3-dimethyl cyclopent-1-ene

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  5. What will happen when ethyne treated with hydrogen iun presence of pla...

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  6. What will happen when propyne treated with hydrogen in presence of nic...

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  7. What is lindlar"s catalyst?

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  8. What is birch reduction?

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  9. Sodium salt of which acid will be needed for the preparation of propan...

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  10. Name a product obtained by heating butanoic acid with soda lime at 630...

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  11. Which salt on treatment with soda lime gives ethane?

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  12. Draw the structure of following : 2-methyl-3-isopropyl heptane.

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  13. Draw the structure of following : dicyclopropyl methane

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  14. Draw the structure of following : n C4H10

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  15. Write iupac name of following : CH2=CH2

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  16. Write iupac name of following : CH3-CH=CH2

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  17. Write iupac name of following : CH3-CH2-CH=CH2

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  18. Write iupac name of following : CH3-CH=CH-CH3

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  19. Write iupac name of following : CH3(CH2)2CH=CH2

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  20. Write iupac name of following : CH3(CH2)3CH=CH2

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  21. Write iupac name of following : CH2=C(CH3)2

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