Box-linking and key word selection questions

Foundation tier papers may include questions in which you have to complete a sentence or draw lines to match correct options.

In both cases, some of the options given are incorrect - examiners call these 'distractors' - and you should avoid selecting these.

When selecting a key word, make sure you only use words from the given list. When you answer a line matching question, use straight lines rather than complex wavy lines. Do not draw more lines than necessary to answer the question.

Questions courtesy of Eduqas.

Sample question 1 - Foundation


Electrolysis is used to extract aluminium from molten aluminium oxide.

Replace the question marks to balance the symbol equation for the overall reaction occurring.

2Al2O3 → ?Al + ?O2 [1 mark]

2Al2O34Al + 3O2 [1]

Sample question 2 - Foundation


Choose the answers to this question from the following symbols and formulae. [2 marks]

  • Cu
  • Fe
  • H2
  • Mg2+
  • Ne
  • Nh3
  • O2

Give the symbol or formula for:

  • a compound
  • a metal ion
  • Nh3 [1]
  • Mg2+ [1]