O-LevelChemistryMetals & Reactivity5070/12 · May/June 2014 · Q221 Mark

Which process does not involve the use of a transition element?

Athe manufacture of margarine from vegetable oil

Bthe manufacture of sulfuric acid in the Contact process

Cthe purification of river water to produce drinking water

Dthe removal of combustion pollutants from car exhaust gases

✓ Correct answer

C: the purification of river water to produce drinking water

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2014 Paper 1 Variant 2, question 22.

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