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प्रश्न
Define the following terms: Lyophilic colloid
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उत्तर
Colloidal sols directly formed by mixing substances such as gum, gelatine, starch and rubber with a suitable liquid (the dispersion medium) are called lyophilic sols.
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संबंधित प्रश्न
Write a method by which lyophobic colloids can be coagulated.
Out of sulphur sol and proteins, which one form multimolecular colloids?
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?
Why are hydrophobic sols easily coagulated?
How are colloids classified on the basis of the nature of the dispersion medium?
Which of the following interface cannot be obtained?
Method by which lyophobic sol can be protected?
What happens when gelatin is mixed with gold sol?
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 |
