Question

3 students A,B and C prepared mixtures using chalk powder , common salt and milk respectively. whose mixture: 
(a) would not leave residue on filter paper after filtration? 
(b) would show tyndall effect? 
(c) would give transparent / clear solution?

Answer 1

a) milk
b) chalk powder
c) common salt

Answer 2

a) milk
b) chalk powder
c) common salt