Out of gases and liquids, which diffuse faster?

Important Questions on Matter in Our Surroundings

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 23

How will you justify that ice, water and water vapours are the three states of a substance and not substances.

HARD

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 24

How will you demonstrate that interparticle spaces are present in a matter?

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 25

Enlist the main characteristics of the particle nature of matter.

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 27

Define density. Out of the solid, liquid and gaseous states, in which the density is the maximum?

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 28

The kinetic energy of the particles in the liquid state is more than in the solid state. Comment.

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 29

Define melting point of a solid. Discuss its significance.

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 30

Discuss in brief the scales of measuring temperature and pressure.

MEDIUM

9th CBSE

IMPORTANT

Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 31

Clothes dry fast on a windy day. Why?