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प्रश्न
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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उत्तर
By Fractional Distillation
Principle – Based on the separation of a mixture of two miscible liquids, with different boiling points.
Fractional distillation – It is the mixture of two miscible liquids with different boiling points is heated in a distillation flask when the two liquids separate out due to their difference in boiling points.
The technique of Separation – The mixture of two miscible liquids e.g. alcohol and water have different boiling points is taken in the distillation flask and heated slowly.
The mixture boils are the respective boiling points of the components and the component with the higher boiling point remains behind in the distillation flask condensation. The component with the lower boiling point collects in the receiver, after condensation in the Liebig's condenser.
The fractionating column contains several traps to allow the vapours of the higher boiling point components to condense, thereby only the lower boiling point component enters the condenser and is collected in the receiver.
Fractionation distillation apparatus
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संबंधित प्रश्न
Give a brief description of the principle of the following technique taking an example.
Distillation
How is distillation more advantageous than evaporation?
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 :
Choose the correct option.
Which of the following techniques is used for the separation of glycerol from soap in the soap industry?
Choose the correct option.
A mixture of acetone and benzene can be separated by the following method:
What will happen if the upper outlet of the condenser is connected to the tap instead of the lower outlet?
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.
Draw a diagram of bubble plate type fractionating column. When do we require such type of a column for separating two liquids. Explain the principle involved in the separation of components of a mixture of liquids by using fractionating column. What industrial applications does this process have?
Explain the factors, which will affect the rate of evaporation, taking examples from our daily life experiences.
