MCQ Class 9 Science Chapter 1 Matter In Our Surroundings

MCQs MCQs Class 9

Please refer to the MCQ Questions for Class 9 Science Chapter 10 Matter In Our Surroundings. The following Matter In Our Surroundings Class 9 Science MCQ Questions have been designed based on the latest syllabus and examination pattern for Class 9. Our experts have designed MCQ Questions for Class 9 Science with Answers for all chapters in your NCERT Class 9 Science book.

Matter In Our Surroundings Class 9 MCQ Questions with Answers

See below Matter In Our Surroundings Class 9 Science MCQ Questions, solve the questions and compare your answers with the solutions provided below.

Question. Particles move randomly in:     
a. Water
b. Sugar
c. Nitrogen
d. Dry ice

Answer

C

Question. When we blow air into the balloon it inflates because:     
a. Air particles diffuse into the balloon
b. Air particles collide with the walls of the balloon and exert pressure on them
c. Rubber is elastic in nature
d. The temperature of air in the balloon increases

Answer

B

Question. The boiling point of water is:     
a. 101oC at atmospheric pressure
b. 273K at atmospheric pressure
c. 0oC at atmospheric pressure
d. 0K at atmospheric pressure

Answer

A

Question. As solid melts to form liquid:       
a. Inter particle distance increases
b. Inter molecular forces of attraction decreases
c. Compressibility increases
d. All of the above

Answer

D

Question. Which of the following is not characteristic of solid:   
a. High Rigidity
b. Regular Shape
c. High density
d. High compressibility

Answer

D

Question. Which of the following has highest intermolecular forces of attraction?   
a. Water at room temperature
b. CO2 gas
c. Ethyl alcohol
d. Iron metal

Answer

D

Question. The conversion of solid to gas directly is called:   
a. Evaporation
b. Sublimation
c. Distillation
d. condensation

Answer

B

Question. Evaporation of a liquid can take place:   
a. At its boiling point
b. At all temperatures
c. At its freezing point
d. At a fixed temperature

Answer

B

Question. Which of the following describes a liquid state:   
a. Definite volume and definite shape
b. Definite volume and no specific shape
c. definite shape but no definite volume
d. neither definite shape nor definite volume

Answer

B

Question. At higher altitudes the boiling points of liquids 
a. Increases
b. Decreases
c. Remains the same
d. Increases then decreases

Answer

B

Question. During evaporation particles of a liquid change into vapours :   
a. From the surface
b. From the bulk
c. From the bottom
d. From all over the liquid

Answer

A

Question. Wet clothes are kept for drying. Which of the following does not help them in drying:   
a. Spreading it out
b. Blowing wind over it
c. Making the room a little warmer
d. Cooling the room

Answer

D

Question. latent heat of vapourisation is used to: 
a. Overcome forces of attraction between the liquid particles at the boiling point
b. Overcome forces of attraction between solid particles at the freezing point
c. Increase the kinetic energy of particles in the liquid state
d. Increase the kinetic energy of the particles in the vapour phase

Answer

A

Question. Which of the following has highest density?   
a. Kerosene
b. Water
c. Iron
d. Wood

Answer

C

Question. Dry ice on heating produces:   
a. Liquid CO2
b. Gas CO2
c. Liquid water
d. Water vapour

Answer

B

Question. In which phenomenon does water change into water vapour below its boiling point:         
a. Boiling
b. Evaporation
c. Freezing
d. Sublimation

Answer

B

Matter In Our Surroundings Class 9 Science MCQ Questions