Class 9 Is Matter Around Us Pure Quiz Set 1

1. Calculate the concentration of a solution in volume per cent made when 56 g of water is mixed with 0.17 L of ethanol

 
 
 
 

2. which technique is used in diagnostic laboratories for blood and urine test?

 
 
 
 

3. A mixture of sulphur and carbon disulphide is

 
 
 
 

4. Centrifugation do not used in

 
 
 
 

5. what is the boiling point of acetone

 
 
 
 

6. The colloidal solution is where both the dispersed phase and the dispersing medium are liquid, is

 
 
 
 

7. Which of the following apparatus is not required in sublimation?

 
 
 
 

8. Which of the following mixtures is translucent ?

 
 
 
 

9. which one of the following is not the property of mixtures ?

 
 
 
 

10. Solid particles are not soluble in solution, That can be separated by

 
 
 
 

11. Which of the following will show Tyndall effect

 
 
 
 

12. Solid particles are not soluble in solution, That can be separated by

 
 
 
 

13. Two substances, A and B were made to react to reaction a third substance, A2B according to the following
2 A + B → A2B
Which of the following statements concerning this reaction are incorrect?
(i) The product A2B shows the properties of substances A and B
(ii) The product will always have a fixed composition
(iii) The product so formed cannot be classified as a compound
(iv) The product so formed is an element

 
 
 
 

14. Colour of compound of iron and sulphur

 
 
 
 

15. 0.5 g of substance is dissolved in 25 g of a solvent. Calculate the percentage amount o the substance in the solution.

 
 
 
 

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