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1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

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Question 10
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At a chemical works, a technician monitors a fractionating column separating two miscible liquids with different boiling points.

Which account describes how the column separates the liquids?

[1]
A

Vapours repeatedly condense and re-evaporate; the liquid with the lowest boiling point reaches the top first

B

Both liquids pass straight through the column as vapours and condense together

C

Vapours repeatedly condense and re-evaporate; the liquid with the highest boiling point reaches the top first

D

The liquid with the lowest boiling point stays in the flask while the other liquid vaporises

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1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

93 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.

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