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O-LevelChemistryRates of Reaction5070/11 · May/June 2012 · Q181 Mark

Copper(II) carbonate powder was heated. The loss in mass was plotted against time as shown on the graph. During which time interval is the reaction fastest?

Diagram for this question, from the exam paper

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.

A0 to 2 min
B2 to 4 min
C6 to 8 min
D8 to 10 min

✓ Correct answer

A: 0 to 2 min

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About this question

Topic
Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, May/June 2012 Paper 1 Variant 1, question 18.

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