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प्रश्न
What type of colloid is formed when a gas is dispersed in a liquid? Give an example
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उत्तर
When a gas is dispersed in a liquid then foam type of colloid is formed.
Example: Froth and whipped cream
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संबंधित प्रश्न
What is the difference between multimolecular and macromolecular colloids? Give one example of each. How are associated colloids different from these two types of colloids?
What are micelles? Give an example of a micellers system.
Write an important characteristic of lyophilic sols.
At high concentration of soap in water, soap behaves as ______.
Method of formation of solution is given in Column I. Match it with the type of solution given in Column II.
| Column I | Column II |
| (i) Sulphur vapours passed through cold water | (a) Normal electrolyte solution |
| (ii) Soap mixed with water above critical micelle concentration | (b) Molecular colloids |
| (iii) White of egg whipped with water | (c) Associated colloid |
| (iv) Soap mixed with water below critical micelle concentration | (d) Macro molecular colloids |
Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is:-
At CMC (Critical micelle concentration) the surface molecules ______.
Differentiate between the following:
Multimolecular Colloid and Macromolecular colloid
For micelle formation, which of the following statements are correct?
- Micelle formation is an exothermic process.
- Micelle formation is an endothermic process.
- The entropy change is positive.
- The entropy change is negative.
Which of the following is kinetic property of colloidal solutions?
