Properties:

 

  • They are formed by mixing of 2 or more substances.

            (these may be elements or compounds)
            For example, Lemon Squash is made by mixing lemon juice, water and sugar.

 

 

  • The substances are not chemically combined in a mixture
    For example, let us consider the water and sugar in the llemon squash. The molecules are merely present in the solution without forming bonds. 

 

  • A mixture shows properties of substances it is made up of  

           (constituent substances)
           Example, sugar which is a sweet substance on being added to lemon juice makes it sweet.

 

  • Different Elements of mixtures can be separated by Physical methods
    (Example - Filtration, Sublimation, Evaporation etc.)
    In this case, the seeds of the lemon can be separated by straining using a sieve

 

Example 1 -

If we put salt in water , it is a mixture

It does not form a new substance chemically.

It is possible to separate salt from water by using physical methods like evaporation.

Example 2

Air is a mixture of different gases like Oxygen, Carbon Dioxide, Nitrogen etc.

It is possible to separate these different gases by using physical methods



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  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.