HARD
9th CBSE
IMPORTANT
Earn 100

How will you separate benzene from a mixture of benzene and toluene?

Important Questions on Is Matter Around Us Pure? (Elements, Compounds and Mixtures)

HARD
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 3
Differentiate between homogeneous and heterogeneous mixtures with examples.
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 4
Identify solutions from the following list:
(a) Soil 
(b) Air 
(c) Sea water      
(d) Coal    
(e) Soda water
 
HARD
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 5
Classify the following into elements, compounds and mixtures.
(a) Calcium        
(b) Water        
(c) Dry ice 
(d) Milk
(e) Soil
(f) Soap
 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 6

Classify the following as chemical and physical change:

Cooking of food.       

MEDIUM
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 6

Classify the following as chemical and physical change:

Heating platinum.
MEDIUM
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 6
Classify the following as chemical and physical change:
Freezing of water is _____ change. (Chemical/ Physical)
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 6
Classify the following as chemical and physical change:
Drying of clothes is _____ change. (Chemical/Physical)
MEDIUM
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Questions as per the Guidelines of CBSE>Q 6
Classify the following as chemical and physical change:
Mixing of iron nails and sand is _____ change. ( Chemical/Physical)