O-LevelChemistryStoichiometry5070/12 · Oct/Nov 2018 · Q11 Mark

When heated, magnesium reacts with oxygen in the air to form magnesium oxide, a white powder. A student investigates the change in mass that occurs during this reaction. He is given a balance and the three sets of apparatus shown. Which sets of apparatus are suitable for this investigation?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A1, 2 and 3

B1 and 3 only

C2 and 3 only

D2 only

✓ Correct answer

C: 2 and 3 only

Oracle Prep sorts past-paper questions by topic, so you can drill Stoichiometry and see which topics are most likely to come up next.

Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 2, question 1.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content