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Justify the use of gelatin as a protecti...

Justify the use of gelatin as a protective colloid.

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Ans: Gelatin ts a lyophilic colloids. Lyophilic colloids have à unique property of protecting lyopliobic colloids. When gelatin is added to a lyoplobic colloids, lyophobic sols acquire greater stability towards coagulation i.e., they get protected and do not get coagulated easily when an electrolyte is added.
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V PUBLICATION-SURFACE CHEMISTRY-QUESTION BANK
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  2. Explain what obsserved i.when a beam of light is passed through a co...

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  3. Justify the use of gelatin as a protective colloid.

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  9. In the colloidal state the particle size ranges below 1mm, between 1...

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  10. Which of the following is lyophobic colloid? (1)Gelatine (2)Sulphur ...

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  11. Physical adsorption is essentially quite appreciable: at room temper...

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  13. Smoke is colloidal solution of (1)Solid dispersed in liquid (2)Gas ...

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  14. Which of the following is a hydrophilic colloidal sol? (1)Barium sulph...

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  16. The function of gum arabic in the preparation of Indian ink is (1)Coa...

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  19. Adsorption of a gas on the surface of solid is generally accompanied b...

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