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
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 7
How is the high compressibility property of gas useful to us?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 8
Liquids and gases can be compressed but it is difficult to compress solids. Why?
HARD
9th CBSE
IMPORTANT
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 9
State the differences between solid, liquid and gas.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 10
Pressure and temperature determine the state of a substance. Explain.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 11
Give Reasons: Water kept in earthen pots become cool during summer
MEDIUM
9th CBSE
IMPORTANT
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 12
Give Reasons: Naphthalene balls disappear with time without leaving any solid
MEDIUM
9th CBSE
IMPORTANT
Full Marks Science>Chapter 1 - Matter in Our Surroundings>TEST YOUR SKILLS>Q 13
Give Reasons: A gas fills completely the vessel in which it is kept.