Class 9 Is Matter Around Us Pure Quiz Set 2

1. Sublimation technique is used to separate the type of mixture which is:

 
 
 
 

2. The crystals of copper sulphate turn white on heating due to

 
 
 
 

3. A solution contains 40 g of common salt dissolved in 320 ml of water. calculate the mass concentration of the solution.

 
 
 
 

4. The colour of the pure ammonium chloride

 
 
 
 

5. Recovery of salt from salt solution can be quickly done by :

 
 
 
 

6. Name the type of colloid whose dispersed phase is liquid and dispersing medium is gas

 
 
 
 

7. ………….method use for separation of petroleum products

 
 
 
 

8. A mixture of of camphor and ammonium chloride can be separated by

 
 
 
 

9. To make a saturated solution 36 g of sodium chloride is dissolved in 100 g of water at 293 K. finds its concentration at this temperature.

 
 
 
 

10. Which of the following mixtures can be  separated by sublimation

 
 
 
 

11. ………………solutions can separated depending upon their densities.

 
 
 
 

12. smoke is an example of which type of colloid

 
 
 
 

13. Foam is a type of colloid whose dispersed phase is

 
 
 
 

14. Which method is used to separate two miscible liquids?

 
 
 
 

15. Among the following substance, which one is a mixture ?

 
 
 
 

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