HARD
6th ICSE
IMPORTANT
Earn 100

Why does visibility increase after rainfall?

Important Questions on Separation Techniques

EASY
6th ICSE
IMPORTANT
Draw a well-labeled diagram showing the process of filtration. Name any four substances that can be used as filters.
EASY
6th ICSE
IMPORTANT

Name the process by which the components of the following mixtures can be separated:

Sand and camphor

HARD
6th ICSE
IMPORTANT
Find the odd one out. Give a scientific reason for your answer.

Solutions, compounds, suspensions, emulsions.

HARD
6th ICSE
IMPORTANT
What is meant by separation of constituents of a mixture? Why is it done?
MEDIUM
6th ICSE
IMPORTANT
How will you separate a mixture of iron filings, chalk powder and common salt? 
HARD
6th ICSE
IMPORTANT
By giving two reasons, prove that:

Water is a compound.

HARD
6th ICSE
IMPORTANT
Suspended impurities in water sink to bottom on adding alum. Give reasons.