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Are the sols of metals hydrophilic or hy...

Are the sols of metals hydrophilic or hydrophobic?

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Hydrophobic
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A : Soap has both hydrophilic and hydrophobic gropus . R : Soap acts as emulsifier in cleaning action.

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Lyophilic sols are:

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ICSE-SURFACE CHEMISTRY -INTEXT QUESTIONS
  1. What type of substances form lyophobic sols ?

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  2. Write two differences between multimolecular colloids and macromolecul...

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  3. Are the sols of metals hydrophilic or hydrophobic?

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  4. Give an example of associated colloid.

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  5. Colloidal solution can be made in water and in air as media. What dist...

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  6. To which colloidal system does milk belong?

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  7. To which colloidal system does smoke belong?

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  8. Which out of gold sol and gelatin in water sol is a lyophilic sol?

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  9. Which out of the following is a macromolecular and multimolecular coll...

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  10. How will you obtain a colloidal solution of arsenious sulfide?

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  11. Is haemoglobin negatively or positively charged sol?

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  12. Can a gas mixed with another gas forms a colloidal solution? Give reas...

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  13. Can colloidal solutions be filtered through normal filter papers ?

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  14. What is meant by the term peptization ?

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  15. Explain the terms with suitable examples: Alcosol

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  16. Explain the terms with suitable examples: Aerosol

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  17. Explain the terms with suitable examples: Hydrosol

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  18. How can a colloidal solution be distinguished from the true solution o...

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  19. In what way a sol different from a gel ?

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  20. State one difference between an emulsion and a sol.

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