MEDIUM
9th CBSE
IMPORTANT
Earn 100

With the help of an example, explain how diffusion of gases in water is essential.

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
How is the high compressibility property of gas useful to us?
MEDIUM
9th CBSE
IMPORTANT
Liquids and gases can be compressed but it is difficult to compress solids. Why?
HARD
9th CBSE
IMPORTANT
State the differences between solid, liquid and gas.
MEDIUM
9th CBSE
IMPORTANT
Pressure and temperature determine the state of a substance. Explain.
MEDIUM
9th CBSE
IMPORTANT
Give Reasons: Water kept in earthen pots become cool during summer
MEDIUM
9th CBSE
IMPORTANT
Give Reasons: Naphthalene balls disappear with time without leaving any solid
MEDIUM
9th CBSE
IMPORTANT
Give Reasons: A gas fills completely the vessel in which it is kept.