Question

State the principle of each of the following methods of separation of mixtures. (i) Dye from blue ink. (ii) Sodium Chloride and ammonium chloride

Answer 1

1. Evaporation, By the process of evaporation the water contained in the blue ink will get evaporated and the solid dye will remain as residue.

2. Sublimation, By the process of sublimation Ammonium chloride will get sublimated(converted to gas) and sodium chloride will remain as residue, then the Ammonium chloride gas can be solidified by cooling and gets separated