MEDIUM
9th CBSE
IMPORTANT
Earn 100

What is Tyndall effect? How does it help in noticing the particles present in a colloidal solution?

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 39

You are given a mixture of methyl alcohol and acetone. Suggest a method for its separation.

EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 40

What are physical and chemical changes? How will you distinguish between them?

MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 41
A mixture whether homogeneous or heterogeneous cannot be a pure substance. Explain.
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 42

Give one example of solid dissolved in liquid solution.

EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 42
Give one example of solid dissolved in solid solution. 
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 42
Give one example of liquid dissolved in liquid solution.    
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 42
Give one example of gas dissolved in liquid solution.
EASY
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 2 - Is Matter Around Us Pure>TEST YOUR KNOWLEDGE>Q 43

A mixture of alcohol and water is called a true solution while that of mustard oil and water is known as emulsion. How will you account for it?