EASY
7th ICSE
IMPORTANT
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In which of the following cases gas is used in compressed form?

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Important Questions on Matter

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 1
_____ can be compressed into very small volumes by applying large pressure.
EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 3

Fill in the blank with the correct word given in the bracket.

The temperature at which a liquid boils and changes rapidly into a gas at _____ is called boiling point of the liquid. (atmospheric pressure/ atmospheric temperature)

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 4
Particles of _____ has maximum kinetic energy.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 7
The three states of matter are classified based on the difference in the _____ of their particles.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 1
Evaporation takes place only at the boiling point of a liquid.
EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 2
The intermolecular force of attraction between the particles keeps them together as solids, liquids and gases.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 3
The physical state of matter can be changed by changing the temperature.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 1 - Matter>EXERCISES>Q 4
The liquids form vapours only at their boiling points.