Class 9 Matter In Our Surroundings Quiz Set 2

1. The melting point temperature of the solid state of a substance is 40°C. The freezing point temperature of the liquid state of the same substance will be

 
 
 
 

2. The liquid which has the highest rate of evaporation is:

 
 
 
 

3. CO2 can be easily liquified and even solidified because

 
 
 
 

4. When potassium permagnet dissolve in water shows

 
 
 
 

5. We get the smell of hot food in the kitchen outside the house because of

 
 
 
 

6. The one, in which inter-particle forces are strongest, is:

 
 
 
 

7. Select the correct order of evaporation for water, alcohol, petrol and kerosene oil:

 
 
 
 

8. Mass per unit volume of a substance is called its:

 
 
 
 

9. All gases will occupy zero volume when the temperature is reduced to

 
 
 
 

10. Which of the following has heighest kinetic energy?

 
 
 
 

11. Solids has tendency to maintain their …………. and ………….

 
 
 
 

12. Zig-zag movement of the solute particle in a solution is known as

 
 
 
 

13. When we blow air into the balloon it inflates because

 
 
 
 

14. Which is incorrect statement:

 
 
 
 

15. Which of the following statements best explains why a closed balloon filled with helium gas rises in air?

 
 
 
 

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