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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Define :- Distillation - Chemistry

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प्रश्न

Define :- Distillation 

व्याख्या
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उत्तर

Distillation : Distillation is the method of getting a pure liquid from a solution by evaporating and then condensing the vapours.

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पाठ 3: Elements, Compounds and Mixtures - Exercise II

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 3 Elements, Compounds and Mixtures
Exercise II | Q 4.4

संबंधित प्रश्‍न

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 :


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. 


Write an answer to the following question in your own words.

Where are the methods of separation by distillation and by separating funnel used? Why?


Write an answer to the following question in your own words.

Which precaution will you take while using the methods of distillation and separation by separating funnel?


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

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


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

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