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Q 1. According to ancient philosophers matter consists of
three constituents
four constituents
five constituents
six constituents
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Q 2. Which of the following is not matter?
air
feeling of cold
dust
humidity
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Q 3. Which of the following statements is not correct?
Matter is continuous in nature
Interparticle spaces are maximum in the gaseous state of a substance
Particles which constitute the matter follow a zig-zag path
Solid state is the most compact state of a substance
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Q 4. The mass per unit volume of a substance is called :
density
valency
solubility
none of above
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Q 5. A gas can be best liquefied
by increasing the temperature
by lowering the pressure
by increasing the pressure and reducing the temperature
none of these is correct
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Q 6. Evaporation of a material takes place :
above its boiling point
below its boiling point
at its melting point only
below its melting point
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Q 7. Which of the following exists as gas?
Petrol
Helium
Sodium
Iodine
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Q 8. 10°C temperature is equal to
163 K
10 K
183 K
283 K
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Q 9. Which of the following will respond to sublimation?
Common salt
Sugar
Camphor
Potassium nitrate
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Q 10. Which of the following statements do not go with the liquid state?
Particles are loosely packed in the liquid state
Fluidity is the maximum in the liquid state
Liquids cannot be compressed
Liquids take up the shape of any container in which they are placed
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Q 11.
| Column I | Column II |
|---|---|
| (A) Spread sweet odour into the atmosphere | (P) Sublimation |
| (B) Change of liquid state to gaseous state | (Q) Diffusion |
| (C) Change of solid state directly to gaseous state | (R) Condensation |
| (D) The gas changing to a liquid | (S) Vaporization |
(A)-(Q), (B)-(S), (C)-(P), (D)-(R)
(A)-(Q), (B)-(R), (C)-(Q), (D)-(S)
(A)-(Q), (B)-(R), (C)-(Q), (D)-(P)
(A)-(S), (B)-(Q), (C)-(R), (D)-(P)
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Q 12. The physical state of water at 100°C is
Solid
Liquid
Gas
None of these
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Q 13. The state of matter that can be easily compressed is
Solid
Liquid
Gas
Super cooled solid
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Q 14. A substance which has a definite volume but no definite shape is
Solid
Liquid
Gas
None of these
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Q 15. The change from vapour to liquid is called
Condensation
Fusion
Sublimation
None of these
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Q 16. The melting point of ice is
273.16 K
373.16 K
283.16 K
263.16 K
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Q 17. The change from solid to gas directly is called
Vaporization
Sublimation
Condensation
None of these
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Q 18. Diffusion is a property of matter, based on
Motion of its particles
Size of its particles
Pressure
Temperature
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Q 19. The SI unit of temperature is
Celsius
Kelvin
Fahrenheit
None of these
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Q 20. The process of changing liquid into solid is called
Evaporation
Freezing
Condensation
Sublimation
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Q 21. The state of which 99% matter of the universe is
Plasma
Solid
Gaseous
Liquid
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Q 22. The tendency of non-reacting gases to mix with each other is called as
Chemical reaction
Diffusion
Effusion
Explosion
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Q 23. Which of the following are states of matter?
Solid
Liquid
Gas
All of the above
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Q 24. Physical state of matter can be changed by
change of pressure
change of volume
change of time
change of composition
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Q 25. Solids have/can
Fixed shape
Variable volume
Flow easily
Low densities