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प्रश्न
Define Distillation
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उत्तर
The process in which liquid is converted into its vapor phase at its boiling point and the vapor is then condensed back to liquid on cooling is known as distillation.
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संबंधित प्रश्न
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Distillation
Define :- Distillation
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Fractional distillation :
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The liquid which evaporates and then condenses during the process of distillation
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Components of crude petroleum can be separated by
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Explain the difference between Separation by distillation and by separating funnel.
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Where are the methods of separation by distillation and by separating funnel used? Why?
Methyl alcohol and water
- Give the principle involved in the separation of the mixture
- Give the technique of separation of the mixture.
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Which of the following methods can be used to separate two compounds with different solubilities in the same solvent?
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A mixture of acetone and benzene can be separated by the following method:
Why is a condenser used in distillation process?
What is the difference between simple distillation and fractional distillation?
Which of the tubes in Fig. 2.1 (a) and (b) will be more effective as a condenser in the distillation apparatus?
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 |
Assertion (A): Simple distillation can help in separating a mixture of propan-1-ol (boiling point 97°C) and propanone (boiling point 56°C).
Reason (R): Liquids with a difference of more than 20°C in their boiling points can be separated by simple distillation.
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.
What is distillation?
