A student separates a mixture of propanone, which has a boiling point of 56 ∘C56\ ^\circ\text{C}56 ∘C, and ethanol, which has a boiling point of 78 ∘C78\ ^\circ\text{C}78 ∘C. Which process should the student use, and which liquid is collected first?
Simple distillation, and propanone is collected first
Fractional distillation, and ethanol is collected first
Simple distillation, and ethanol is collected first
Fractional distillation, and propanone is collected first
40 exam-style questions on AQA GCSE Chemistry 1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, covering 1.1.1a Atoms, elements and compounds, 1.1.1b Half equations and ionic equations, 1.1.2 Mixtures, 1.1.3 The development of the model of the atom (common content with physics), 1.1.4 Relative electrical charges of subatomic particles, 1.1.5 Size and mass of atoms, 1.1.6 Relative atomic mass, and 1.1.7 Electronic structure. Each one has a worked solution and a mark scheme showing where the marks go.