State the method used to separate;
1. Water from aqueous magnesium sulfate
2. Potassium chloride from aqueous potassium chloride
3. Silver chloride from a mixture of silver chloride and Water
4. Glucose from a mixture of Glucose and maltose
Options: filtration, diffusion, fractional distillation, crystallisation, chromatography. (each may be used once, multiple times or not at all)