What is the liquid that passes through the filter paper called? 

A pure substance is a substance 

Which of these are not mixtures? 

i) air  ii) salt  iii) sugar  iv) seawater.

In a homogeneous mixture, the _____ 

(i) components cannot be seen separately 

(ii) components can be seen separately 

(iii) components cannot be separated 

(iv) components can be separated 

A mixture of sand and iron filings is best separated by _____.

A mixture of chalk and common salt in water can be separated by 

A mixture of sand, water and mustard oil can be separated by