O-LevelChemistryRates of Reaction5070/11 · May/June 2023 · Q131 Mark

Two gases react inside a sealed vessel. Which change in conditions would increase the rate of reaction? 1 increasing the pressure inside the vessel 2 increasing the temperature inside the vessel 3 increasing the volume of the vessel

A1, 2 and 3

B1 and 2 only

C1 and 3 only

D2 and 3 only

✓ Correct answer

B: 1 and 2 only

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 2023 Paper 1 Variant 1, question 13.

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

Which statement about catalysts is correct for a typical equilibrium reaction?

When a solution containing silver ions is added to a solution containing iron(II) ions, an equilibrium is set up. Ag+…

The oxide of an element X increases the rate of decomposition of hydrogen peroxide. At the end of the reaction the ox…

The diagram shows an outline of part of the Periodic Table. Which statements are correct? 1 Elements W, X and Y form …

Which of these processes can be used to purify water containing insoluble impurities? 1 chlorination, 2 desalination,…

Which metal can react rapidly with steam but reacts only very slowly with cold water?