Practice test

States of matter and its structure - Test Set 3

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Which state of matter has a definite shape and volume?
    1. Solid
    2. Liquid
    3. Gas
    4. Plasma
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  2. Question 2

    What is the fifth state of matter?
    1. Plasma
    2. Superfluid
    3. Bose-Einstein Condensate (BEC)
    4. Colloid
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  3. Question 3

    Which of the following can undergo sublimation?
    1. Ice
    2. Camphor
    3. Water
    4. Salt
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  4. Question 4

    Which among the following states of matter consists of ionized gases?
    1. Liquid
    2. Solid
    3. Plasma
    4. Bose-Einstein Condensate
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  5. Question 5

    Which phenomenon explains the mixing of gases without external stirring?
    1. Osmosis
    2. Diffusion
    3. Effusion
    4. Sublimation
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  6. Question 6

    Which of the following represents a chemical change?
    1. Melting of ice
    2. Boiling of water
    3. Rusting of iron
    4. Freezing of water
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  7. Question 7

    Which factor does not affect the rate of diffusion?
    1. Temperature
    2. Size of particles
    3. Color of the particles
    4. Medium of diffusion
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  8. Question 8

    What is the physical state of water at 100°C under normal atmospheric pressure?
    1. Only liquid
    2. Only gas
    3. Both liquid and gas
    4. Solid
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  9. Question 9

    Which of the following statements is correct?
    1. Solids are highly compressible
    2. Gases have fixed shape
    3. Liquids have fixed volume
    4. Solids flow easily
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  10. Question 10

    Which change of state occurs during evaporation?
    1. Solid to liquid
    2. Liquid to gas
    3. Gas to solid
    4. Solid to gas
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  11. Question 11

    Latent heat of vaporization is the energy required to:
    1. Melt a solid
    2. Freeze a liquid
    3. Convert liquid to gas at boiling point
    4. Raise temperature of gas
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  12. Question 12

    Which of the following is true for mixtures?
    1. They always have fixed proportions
    2. They have variable composition
    3. They are always solid
    4. They have chemical bonding
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  13. Question 13

    Which of the following is a compound?
    1. Air
    2. Brass
    3. Water
    4. Soil
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  14. Question 14

    Which state of matter has negligible intermolecular force of attraction?
    1. Solid
    2. Liquid
    3. Gas
    4. Plasma
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  15. Question 15

    Dry ice is the solid form of:
    1. Nitrogen
    2. Carbon dioxide
    3. Oxygen
    4. Ammonia
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  16. Question 16

    Which of the following is a triatomic molecule?
    1. O₂
    2. N₂
    3. O₃
    4. H₂
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  17. Question 17

    The process where a liquid turns into a gas at its boiling point is called:
    1. Evaporation
    2. Condensation
    3. Vaporization
    4. Freezing
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  18. Question 18

    Water boils at a lower temperature on mountains because:
    1. Air pressure decreases
    2. Gravity is weaker
    3. Humidity increases
    4. Latent heat reduces
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  19. Question 19

    Which of the following is NOT a chemical change?
    1. Burning of wood
    2. Rusting of iron
    3. Melting of ice
    4. Cooking food
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  20. Question 20

    The Kelvin scale reading of 25°C is:
    1. 248 K
    2. 298 K
    3. 273 K
    4. 300 K
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