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प्रश्न
Differentiate between the following:
Lyophobic Sol and Lyophilic Sol
उत्तर
| Sr. No. | Lyophobic Sol | Lyophilic Sol |
| 1. | They are solvent-hating and thermodynamically unstable. | They are solvent-loving and thermodynamically stable. |
| 2. | Precipitation is an irreversible process. | Precipitation is a reversible process. |
| 3. | Formed by special methods. | Formed easily by direct mixing. |
| 4. | For example, Metal sulphides and hydroxides. | For example, Starch, Gelatin. |
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संबंधित प्रश्न
What are lyophilic and lyophobic colloids ? Which of these sols can be easily coagulated on the addition of small amounts of electrolytes?
Define the following terms: Lyophilic colloid
Write a method by which lyophobic colloids can be coagulated.
Give reasons for the following observations: Lyophilic sol is more stable than lyophobic sol.
Define the following term : Multimolecular colloids
How are the colloidal solutions classified on the basis of physical states of the dispersed phase and dispersion medium?
How are colloids classified on the basis of Nature of dispersion medium
How are colloids classified on the basis of Interaction between dispersed phase and dispersion medium?
Which of the following interface cannot be obtained?
Match the items given in Column I and Column II.
| Column I | Column II |
| (i) Protective colloid | (a) \[\ce{FeCl3 + NaOH}\] |
| (ii) Liquid-liquid colloid | (b) Lyophilic colloids |
| (iii) Positively charged colloid | (c) Emulsion |
| (iv) Negatively charged colloid | (d) \[\ce{FeCl3}\] + hot water |
