The box shows some methods that can be used in separating mixtures.
crystallisationdissolvingevaporationfiltrationpaper chromatographysimple distillationfractional distillation \begin{array}{|ccc|} \hline \text{crystallisation} & \text{dissolving} & \text{evaporation} \\ \text{filtration} & \text{paper chromatography} & \text{simple distillation} \\ \text{fractional distillation} & & \\ \hline \end{array} crystallisationfiltrationfractional distillationdissolvingpaper chromatographyevaporationsimple distillationFrom the box, select the best method for each of the separations.
You may use each method once, more than once, or not at all.
Separating insoluble barium sulfate precipitate from a mixture of barium sulfate and water.
Obtaining pure liquid water from an aqueous solution of copper(II) sulfate.
Extracting the soluble red pigments from a sample of crushed beetroot.
Separating and identifying the individual amino acids present in a mixture.
Separating a mixture of liquid hydrocarbons: pentane (boiling point 36∘C36^\circ\text{C}36∘C) and hexane (boiling point 69∘C69^\circ\text{C}69∘C).
29 exam-style questions on Edexcel IGCSE Chemistry Elements, compounds and mixtures. Each one has a worked solution and a mark scheme showing where the marks go.