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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 - Chemistry

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प्रश्न

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.

विकल्प

  • Both A and R are correct and R is the correct explanation of A.

  • Both A and R are correct but R is not the correct explanation of A.

  • Both A and R are not correct.

  • A is not correct but R is correct.

MCQ
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उत्तर

Both A and R are correct and R is the correct explanation of A.

Explanation:

Since the liquids are having sufficient difference in their boiling points. Liquids having different boiling points vaporize at different temperatures. The vapours are cooled, and the liquids so formed are collected separately. 

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अध्याय 12: Organic Chemistry Some Basic Principles and Techniques - Multiple Choice Questions (Type - I) [पृष्ठ १५४]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
अध्याय 12 Organic Chemistry Some Basic Principles and Techniques
Multiple Choice Questions (Type - I) | Q 55 | पृष्ठ १५४

संबंधित प्रश्न

Give a brief description of the principle of the following technique taking an example.

Distillation 


What is the difference between distillation, distillation under reduced pressure and steam 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 :


Give one word answer

The process by which two miscible liquids are separated


Give a scientific reason.

A wet cloth is wrapped around a water storage container in summer.


Explain the difference between Separation by distillation and by separating funnel. 


Methyl alcohol and water

  • Give the principle involved in the separation of the mixture
  • Give the technique of separation of the mixture.

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:


Why is a condenser used in distillation process?


What will happen if the upper outlet of the condenser is connected to the tap instead of the lower outlet?


Alcohol can be separated from water by ______.


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.


A mixture of benzene and chloroform is separated by ______.


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