O-LevelChemistryRates of Reaction5070/11 · Oct/Nov 2017 · Q201 Mark

A chemist investigated the rate of the reaction between ethene and hydrogen using a nickel catalyst. Ni C₂H₄(g) + H₂(g) → C₂H₆(g) The chemist carried out three experiments under different conditions. Which row is correct?

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 greater than 2, 1 greater than 3

B1 greater than 2, 3 greater than 1

C2 greater than 1, 1 greater than 3

D2 greater than 1, 3 greater than 1

✓ Correct answer

A: 1 greater than 2, 1 greater than 3

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Topic: Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2017 Paper 1 Variant 1, question 20.

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