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प्रश्न
Give reasons for the following observations: Lyophilic sol is more stable than lyophobic sol.
उत्तर
The stability of lyophilic sols is a result of two factors, the presence of a charge and the solvation of colloidal particles. On the other hand, the stability of lyophobic sols is only because of the presence of a charge. Thus, lyophilic sol is more stable than lyophobic sol due to the extensive solvaltion.
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संबंधित प्रश्न
Define the following terms: Lyophilic colloid
Write a method by which lyophobic colloids can be coagulated.
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?
What are lyophilic and lyophobic sols? Give one example of each type. Why are hydrophobic sols easily coagulated?
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 |
Movement of dispersion medium under the influence of electric field is known as ______.
