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प्रश्न
Explain the difference between Separation by distillation and by separating funnel.
उत्तर
| S. No. | Separation by distillation | Separation by separating funnel |
| 1. | This method is employed for the separation of two miscible liquids. |
This method is employed for the separation of two immiscible liquids. |
| 2. | It is based on the difference in the boiling points of two liquids. | It is based on the difference in the densities of the two liquids. |
| 3. | Example: separate salt and water from saltwater. | Example: separating oil and water (two immiscible liquids) |
संबंधित प्रश्न
How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25°C), which are miscible with each other?
How would you confirm that a colourless liquid given to you is pure water?
Define :- Distillation
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Fractional distillation :
Select the correct alternative from the choices given for the following statement:
Components of crude petroleum can be separated by
Choose the correct option.
A mixture of acetone and benzene can be separated by the following method:
Define Distillation
Match the type of mixture of compounds in Column I with the technique of separation/purification given in Column II.
| Column I | Column II |
| (i) Two solids which have different solubilities in a solvent and which do not undergo reaction when dissolved in it. | (a) Steam distillation |
| (ii) Liquid that decomposes at its boiling point | (b) Fractional distillation |
| (iii) Steam volatile liquid | (c) Simple distillation |
| (iv) Two liquids which have boiling points close to each other | (d) Distillation under reduced pressure |
| (v) Two liquids with large difference in boiling points. | (e) Crystallisation |
Two liquids (A) and (B) can be separated by the method of fractional distillation. The boiling point of liquid (A) is less than boiling point of liquid (B). Which of the liquids do you expect to come out first in the distillate? Explain.
Explain the factors, which will affect the rate of evaporation, taking examples from our daily life experiences.
