मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Common Salt from a Solution of Common Salt in Water Give the Principle Involved in the Separation of the Mixture Give the Technique of Separation of the Mixture. - Chemistry

Advertisements
Advertisements

प्रश्न

Pure water from impure water

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

उत्तर

By Distillation

Principle- Based on the distillation of the liquid component in a soluble solid-liquid mixture.

Distillation – It is the process of converting a liquid into vapour by heating in a distillation flask & subsequent condensation of the vapour back into the liquid.
The method is used to separate a liquid from a soluble solid or pure liquid [water] from impure liquid [impure water].

The technique of Separation  The soluble solid can be separated from its liquid component or pure water from impure water by placing the mixture i.e. impure water in the distillation flask.

On heating the distillation flask
The solid or solid impurities in the water remain behind in the distillation flask
The liquid or water vaporizes, condenses in the Liebig’s condenser, and is collected in the receiver.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Elements, Compounds and Mixtures - Exercise

APPEARS IN

संबंधित प्रश्‍न

How would you confirm that a colourless liquid given to you is pure water?


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 ?


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.

A mixture of acetone and benzene can be separated by the following method:


Define 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

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?


A mixture of benzene and chloroform is separated by ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×