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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

State the Correct Technique for the Separation of the Following Mixture. a Low Boiling Point Liquid from a High Boiling Point Liquid.

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प्रश्न

State the correct technique for the separation of the following mixture.

a low boiling point liquid from a high boiling point liquid.

एक पंक्ति में उत्तर
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उत्तर

By fractional distillation: 
Miscible low boiling point liquid will evaporate and is collected in the receiver, leaving behind the miscible high boiling point liquid in the flask.

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अध्याय 3: Elements, Compounds and Mixtures - Exercise

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 7
अध्याय 3 Elements, Compounds and Mixtures
Exercise | Q 15.4

संबंधित प्रश्न

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 :


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


Pure water from impure water

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

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 methods can be used to separate two compounds with different solubilities in the same solvent?


Choose the correct option.

Which of the following techniques is used for the separation of glycerol from soap in the soap industry?


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.


What is distillation?


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