Question

Write the steps to separate a mixture containing stones, sand, and ammonium chloride.

Answer 1

The steps to be followed to separate the mixture are:
i)The stones are easily separated by handpicking method as their size and shape are different from the other two.
ii)By heating the sand and ammonium chloride, ammonium chloride undergoes a sublimation process and converts to vapour directly and sand can be separated from the mixture.
iii) The collected vapour of ammonium chloride can convert again to solid on cooling.