O-LevelChemistryRates of Reaction5070/11 · May/June 2016 · Q211 Mark

Which process does not involve the use of a catalyst?

Athe extraction of iron from haematite in a blast furnace

Bthe manufacture of sulfur trioxide

Cthe production of ammonia from nitrogen and hydrogen

Dthe redox reactions that remove combustion pollutants from car exhausts

✓ Correct answer

A: the extraction of iron from haematite in a blast furnace

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Topic: Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2016 Paper 1 Variant 1, question 21.

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