Welcome to our Class 9 Science Chapter 1 Mock Test page! This test is specially designed to help students master the first chapter of their NCERT Science textbook — “Matter in Our Surroundings.” Whether you’re preparing for your school exams, periodic tests, or simply revising your concepts, this mock test will help you build confidence and accuracy.

1. A student made a model to show how particles of a substance X are arranged. His friends observed the model and concluded that Substance X is a solid. What supports their conclusion? [CBSE T.E.R.M.*]

 
 
 
 

2.

 Which one of the following sets of phenomenon would increase on raising the temperature?

 
 
 
 

3.

 Latent heat of fusion is amount of

 
 
 
 

4.

 Which of the following is correct order of forces of attraction?

 
 
 
 

5.

 Which of the following will produce severe burns ?

 
 
 
 

6.

 Which one of the following sets of phenomena would increase on raising the temperature?

 
 
 
 

7.

 The physical state of a matter depends upon

 
 
 
 

8.

 Which of the following cannot be separated by sublimation?

 
 
 
 

9.

 Which of the following is incorrect?

 
 
 
 

10.

 Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions.

 
 
 
 

11.

 Choose the correct statement out of the following.

 
 
 
 

12.


 Shivam visited an LPG unit and found that the gas can be liquified at specific conditions of temperature and pressure. Help him to identify the correct set of conditions.

 
 
 
 

13.

 Which of the following is not a characteristic of matter?

 
 
 
 

14.

 During summer, water kept in earthen pot becomes cool due to phenomenon of

 
 
 
 

15.

 The property to flow is unique to fluids. Which one of the following statement is correct?

 
 
 
 

16.

 Which of the following is not correct?

 
 
 
 

17.

 A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles. Which one of the following represents a correct arrangement?

 
 
 
 

18. A student learns that the particles of brick are arranged in a manner so that they attract each other with greater force. Which diagram shows the arrangement of particles in a brick? [CBSE T.E.R.M.*]

 
 
 
 

19.

 During summer, water kept in an earthen pot becomes cool because of the phenomenon of

 
 
 
 

20.  

 On converting 25 °C, 38 °C and 66 °C to Kelvin scale, the correct sequence of temperature will be

 
 
 
 

21.

 The temperature at which vapour pressure of liquid becomes equal to atmospheric pressure is called

 
 
 
 

22.

 The particles have least intermolecular space but maximum kinetic energy in liquids.

 
 
 
 

23. Seema took a 100 ml beaker and filled half the beaker with water and marked the level of water. She dissolved some salt with the help of a glass rod and recorded water level again.

Choose the correct observation related to above activity.
 
 
 
 

24.

 Which of the following has minimum kinetic energy ?

 
 
 
 

25.

 Ice floats on water because

 
 
 
 

26.

 If we keep cold drink bottle in freezer, what will happen?

 
 
 
 

27. A student put an equal amount of potassium permanganate powder over a glass plate and in a beaker filled with water. The student rubbed the surface of the plate and stir the contents of the beaker. It was observed that the permanganate powder dissolved in the water and formed a colored solution. Which option explains the reason for the student’s observation? [CBSE T.E.R.M.*]

 
 
 
 

28. Liquid diffuse slowly as compared to gases because

 
 
 
 

29.

 The boiling point of water at higher altitude is

 
 
 
 

30.

 Which of the following is correct order of density ?

 
 
 
 

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