MEDIUM
9th CBSE
IMPORTANT
Earn 100

List any three characteristics of colloid. 

Important Questions on Is Matter Around Us Pure?

MEDIUM
9th CBSE
IMPORTANT
Name the two components of a colloid. 
MEDIUM
9th CBSE
IMPORTANT
Identify colloid from the following mixtures: 
Muddy water, sugar in water, ink, blood, soda water, foam 
MEDIUM
9th CBSE
IMPORTANT
Enumerate any two differences between simple distillation and fractional distillation. 
HARD
9th CBSE
IMPORTANT
Draw a labelled diagram showing the process of fractional distillation.
HARD
9th CBSE
IMPORTANT
Calculate the mass of potassium sulphate required to prepare its 10% solution in 100 g of water. 
MEDIUM
9th CBSE
IMPORTANT
Differentiate between physical and chemical change. Give one example of each. Give one example where both physical and chemical change is taking place. 
HARD
9th CBSE
IMPORTANT
What volume of ethyl alcohol and water must be mixed together to prepare 250 ml of 60% volume by volume solution of alcohol in water.
MEDIUM
9th CBSE
IMPORTANT
Mention any two differences between compounds and mixtures.