O-LevelChemistryRates of Reaction5070/12 · Oct/Nov 2015 · Q281 Mark

Some reactions are shown. 1 2SO₂ + O₂ → 2SO₃ 2 C₃H₆ + H₂ → C₃H₈ 3 C₂H₄ + H₂O → C₂H₅OH Which of these reactions use a catalyst when carried out industrially?

A1 only

B1 and 2 only

C2 and 3 only

D1, 2 and 3

✓ Correct answer

D: 1, 2 and 3

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Topic: Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 2, question 28.

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