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- 1. Multiple Choice
The arrangement of constituent particles is most ordered in
Solid state
liquid state
gaseous state
all of these
- 2. Multiple Choice
Which of the following is not a characteristic of matter?
Matter is made up of extremely small particles
There is no space between particles of matter
The particles of matter are continuously moving
The particles of matter attract each other.
- 3. Multiple Choice
Seema took a 100 ml beaker and filled half the beaker with water and marked the level of water. She dissolved some salt with the help of a glass rod and recorded water level again.
The water level increases appreciably
The water level decreases
The water level remains the same
There is little increase in water level.
- 4. Multiple Choice
Shivam visited an LPG unit and found that the gas can be liquified at specific conditions of temperature and pressure. Help him to identify the correct set of conditions.
High temperature and high pressure.
Low temperature and low pressure.
Low temperature and high pressure.
High temperature and low pressure.
- 5. Multiple Choice
During summer, water kept in earthen pot becomes cool due to phenomenon of
Diffusion
Transpiration
Distillation
Evaporation
- 6. Multiple Choice
Which of the following is correct order of forces of attraction?
Water > Air > Sand
Air > Sugar > Oil
Air < Water < Sugar
Salt > Air > Juice
- 7. Multiple Choice
Choose the correct statement out of the following
Conversion of solid into vapours without becoming liquid is called evaporation.
Conversion of vapours into solid without becoming liquid is called sublimation
Conversion of solid into liquid is called sublimation.
Conversion of liquid into vapours is called fusion.
- 8. Multiple Choice
Which of the following will produce severe burns ?
Cold water
Hot water
Boiling water
Steam
- 9. Multiple Choice
Which of the following conditions will increase the rate of evaporation?
Increase in temperature of water
Decrease in wind speed
Decrease in surface area of water
Adding sugar to water
- 10. Multiple Choice
Which of the following is incorrect?
Solids have fixed shape and fixed volume.
Liquids have fixed volume but not shape
Gases have neither fixed shape nor volume
The particles have least intermolecular space but maximum kinetic energy in liquids.
- 11. Multiple Choice
Which of the following is correct order of density ?
Air < Exhaust from chimneys < Honey < Water < Chalk < Cotton < Iron.
Air < Exhaust from Chimneys < Water < Honey < Cotton < Chalk < Iron.
Air < Exhaust from Chimneys < Honey < Water < Chalk < Iron < Cotton
Air < Exhaust from Chimneys < Water < Honey < Chalk < Cotton < Iron
- 12. Multiple Choice
Ice floats on water because
it has higher density than water
it has lower density than water due to more volume
it is solid
it is low melting solid
- 13. Multiple Choice
The physical state of a matter depends upon
temperature and pressure
temperature only
pressure only
nature of substance
- 14. Multiple Choice
The boiling point of water at higher altitude is
373 K
< 373 K
> 373 K
273 K
- 15. Multiple Choice
Latent heat of fusion is amount of
heat energy required to change 1 kg solid into liquid completely at its melting point.
heat energy required to convert 1 kg solid into liquid at room temperature
heat energy required to change 1 g of solid into liquid completely
heat energy required to change 1 kg of solid into liquid at any temperature.
- 16. Multiple Choice
The temperature at which vapour pressure of liquid becomes equal to atmospheric pressure is called
melting point
boiling point.
ignition temperature
sublimation temperature.
- 17. Multiple Choice
Which of the following is not correct?
SI unit of temperature is kelvin
SI unit of pressure is atm
SI unit of density is kg/m3
1 litre = 1000 cm3 = 1 dm3
- 18. Multiple Choice
Which of the following has minimum kinetic energy ?
Particles of ice below 0 °C
Particles of water at 0 °C
Particles of water at 100 °C
Particles of steam at 100 °C
- 19. Multiple Choice
Which of the following has minimum kinetic energy ?
Particles of ice below 0 °C
Particles of water at 0 °C
Particles of water at 100 °C
Particles of steam at 100 °C
- 20. Multiple Choice
Which of the following cannot be separated by sublimation?
Iodine and NaCl
Iodine and Ammonium chloride
Camphor and Sodium chloride
Naphthalene and Sand
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