Define sedimentation.

Important Questions on Is Matter Around Us Pure?

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 1

Define evaporation.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 2

Mention one purpose of separating the components of a mixture.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 3

Differentiate between physical and chemical changes.

HARD

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 4

Why is kerosene considered a mixture? 

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 5

Write three differences between a mixture and a chemical compound.    

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 6

Compare the properties of a true solution, suspension and colloid.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 7

Give one example of each of the following:                     
A. solution of a solid in solid  
B. solution of a liquid in solid  
C. solution of a gas in liquid.
 

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>TEST PAPER>Q 8

What happens when a beam of light is passed through a colloidal solution?