O-LevelChemistryRates of Reaction5070/11 · May/June 2012 · Q171 Mark

How does a catalyst increase the speed of a reaction?

Aby increasing the collision frequency of particles

Bby increasing the speed of the particles

Cby increasing the temperature of the reaction

Dby lowering the activation energy

✓ Correct answer

D: by lowering the activation energy

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

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 17.

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