1. What difference in physical properties enables the separation of mixtures by (a) simple distillation (b) paper chromatography (e) fractional distillation
2. (a) What is water of crystallization? (b) Differentiate between hydrous and anhydrous salis (c) State one advantage and one disadvantage of
evaporation by direct heating as compared to evaporation using a water bath or sand bath. (d) state two differences between distillation and evaporation.