CAIE IGCSE Chemistry: Conditions for Rusting Question Bank

Practise using tube experiments and word equations to decide when iron or steel forms hydrated iron(III) oxide.

Exam points

state oxygen and water as the two substances needed for iron to rust
interpret nail-in-tube experiments to decide where hydrated iron(III) oxide forms

[Maximum number: 1]

This question is about iron.

Iron forms rust.

Rusting is prevented by coating iron with zinc.

Name the substances that react with iron to form rust.

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