Question

What is the correct order of the methods you would apply to separate the components of a mixture of ammonium chloride, common salt and sand ?
(1) dissolving in water, filtration, evaporation and sublimation
(2) dissolving in water, evaporation and sublimation
(3) sublimation, dissolving in water, filtration and evaporation
(4) moving a magnet, dissolving in water and sublimation

Answer 1

Solid ammonium chloride was directly converted to the gas phase, and can easily be separated out from the mixture. Common salt dissolved in water can also be separated from the mixture by the evaporation method.
Sand easily be separated by the filtration method.

Hence, the correct answer is option 3.