Matter In Our Surroundings Mock Tests

25 questions available

Matter In Our Surroundings Mock Test 1

Questions: 25

Sample Questions

Class 9 Science

Which of the following is a characteristic of slime moulds?

A They are prokaryotic

B They can act as decomposers

C They are autotrophic

D They only reproduce sexually

Class 9 Science

What is the process of separating cream from milk called?

A Evaporation

B Centrifugation

C Distillation

D Chromatography

Class 9 Science

Which of the following processes is used to separate immiscible liquids like oil and water?

A Evaporation

B Distillation

C Separating funnel

D Centrifugation

Class 9 Science

Why does a gas cylinder sometimes leak when kept in direct sunlight for long?

A Gas expands due to increase in pressure and temperature

B Chemical reaction of gas with cylinder material

C Metal of cylinder expands and cracks

D Gas molecules are destroyed by UV rays

Class 9 Science

Which of the following is a pure substance?

A Wood

B Ice

C Brick

D Petrol

Class 9 Science

Which of the following is a pure substance?

A Air

B Wood

C Iron nail

D Petroleum

Class 9 Science

Which of the following is a colloid?

A Salt solution

B Milk

C Sugar solution

D Clean air

Class 9 Science

A solution of NaCl in water is:

A Heterogeneous mixture

B Homogeneous mixture

C Colloid

D Suspension

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