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O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2014 · Q321 Mark

Iron rusts when exposed to oxygen in the presence of water. Which method will not slow down the rate of rusting of an iron roof?

Aattaching strips of copper to it
Bcoating it with plastic
Cgalvanising it with zinc
Dpainting it

✓ Correct answer

A: attaching strips of copper to it

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About this question

Topic
Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 1, question 32.

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