A student is given a mixture of propanone (boiling point 56 ∘C56\ ^\circ\text{C}56 ∘C) and water (boiling point 100 ∘C100\ ^\circ\text{C}100 ∘C).
Which combination of apparatus should the student use to separate these two liquids efficiently using fractional distillation?
A separating funnel and a conical flask
A round-bottom flask, a fractionating column, and a condenser
An evaporating basin, a tripod, and a gauze
A boiling tube with a single delivery tube leading to a test tube
107 exam-style questions on Edexcel GCSE Chemistry 3.2 Methods of separating and purifying substances, covering 3.2.1 Pure substances and mixtures, 3.2.2 Techniques for separating mixtures, 3.2.3 Paper chromatography and Rf values, and 3.2.4 Making water potable. Each one has a worked solution and a mark scheme showing where the marks go.