O-LevelChemistryRates of Reaction5070/12 · Oct/Nov 2016 · Q21 Mark

When calcium carbonate is added to dilute hydrochloric acid, carbon dioxide gas is released. Three sets of apparatus are shown. Which sets of apparatus are suitable, together with a stopwatch, for following the rate of this reaction?

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A1, 2 and 3

B1 and 2 only

C2 only

D2 and 3 only

✓ Correct answer

B: 1 and 2 only

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Topic: Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2016 Paper 1 Variant 2, question 2.

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