EASY
9th CBSE
IMPORTANT
Earn 100

What is the nature of blood?

Important Questions on Is Matter Around Us Pure

EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 26
What is the difference between pure substance and mixture. Give an example of each.
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 26
What is the difference between colloidal solution and true solution. Give an example of each.
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 27
Compare the particle sizes in a true solution, colloidal solution and suspension.
MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 28

Why cannot you separate a mixture of alcohol and water by simple distillation?

EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 29

Discuss the role of centrifugation in removing the precipitate formed in a solution.

EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 30
How will you justify that the formation of water from hydrogen and oxygen is a chemical change and not a physical change?
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 31

4 g of a solute are dissolved in 36 g of water. What is the mass percent of the solution?

EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 32

Is the mass percent of a solution same as its strength? Justify your answer.