MEDIUM
9th CBSE
IMPORTANT
Earn 100

Give a reason for the following:
A gas exerts pressure on the walls of the container.

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 3
Give reasons for the following:
A wooden table should be called a solid.
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 4
Tabulate the differences in the characteristics of states of matter. 
 
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 5
Comment upon the following: rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density of various states of matter.
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 6
Describe the factors which affect evaporation.
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 7
Define sublimation. Describe an experiment to show the sublimation of a solid substance. Name two substances from your daily life that sublime on heating.
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 8
What is meant by the change of state? How can you change the physical state of a substance?
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 9
Suggest an experiment to demonstrate the compressibility of gases and liquids.
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 1 - Matter in Our Surroundings>Practice Questions>Q 10
What is the effect of heat on the states of matter? Illustrate the effect of heat on ice.