MEDIUM
9th CBSE
IMPORTANT
Earn 100

Define saturated solution, unsaturated solution and supersaturated solution.

Important Questions on Is Matter Around Us Pure?

HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>EXERCISES>Q 6
What are the applications of colloids?
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>EXERCISES>Q 7
For an effective separation of two components of a miscible liquid by fractional distillation, what is the minimum difference in boiling point of two components?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>EXERCISES>Q 8
Give two applications of the separating funnel method of separating a mixture.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>EXERCISES>Q 9
Give two applications of the centrifugation method of separating a mixture.
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>EXERCISES>Q 10
How will you separate the coloured components of black ink by paper chromatography?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 1

What is meant by a pure substance?

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 2

Which gas forms the liquid first as the air is cooled and which gas evaporates first when liquid air is heated? 

HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 3

Arrange the gases present in air in the ascending order of their boiling points: argon, oxygen, nitrogen.