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Matter In Our Surroundings Mock Tests

25 questions available

Matter In Our Surroundings Mock Test 1

Questions: 25

नमूना प्रश्न

Class 9 Science
Which phenomenon is responsible for the blue colour of the sky?
A Scattering of sunlight by atmospheric particles
B Reflection of sunlight from ocean surfaces
C Refraction of sunlight in water droplets
D Emission of light by atmospheric gases
Class 9 Science
Which of the following is a non-metallic element that is liquid at room temperature?
A Bromine
B Mercury
C Gallium
D Iodine
Class 9 Science
Which of the following is a pure substance?
A Air
B Wood
C Iron nail
D Petroleum
Class 9 Science
A solution of NaCl in water is:
A Heterogeneous mixture
B Homogeneous mixture
C Colloid
D Suspension
Class 9 Science
Which of the following is an example of a physical change?
A Burning of paper
B Ripening of banana
C Melting of ice
D Rusting of iron
Class 9 Science
A mixture of acetone and water can be separated by:
A Filtration
B Setting and decantation
C Distillation
D Magnetic separation
Class 9 Science
Which of the following is a mixture?
A Distilled water
B Sodium chloride
C Air
D Gold
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

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