MEDIUM
9th CBSE
IMPORTANT
Earn 100

How does a true solution differ from a colloid? How will you test whether a given solution is a colloid?

Important Questions on Is Matter Around Us Pure?

HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 9
In what form do elements occur in nature?
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 10
What is the atomic number of the latest element discovered? What is its name? 
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 11

Give one example of each of the following:

a. A solution of a gas in a liquid.

b. A solution of two gases.

c. A solution of two liquids.

d. A solution of two solids.

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 12
Identify the following as mixture or compound: 
a. blood 
b. kerosene 
c. petrol 
d. water 
e. toothpaste.
 
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 13
Give the name of a typical solid solution.
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 14
Identify the colloid and true solution from the following: 
a. vinegar 
b. muddy water 
c. mist 
d. aluminium paint.
 
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 15
How will you test a colloid?
HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>Practice Questions>Q 16
Mention the importance of colloids in nature.