CAIE IGCSE Chemistry 9.4.5 Apparent Unreactivity of Aluminium in Questions
Work through real CAIE IGCSE Chemistry questions to explain aluminium’s apparent unreactivity and resistance to corrosion.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- explain aluminium passivation by its protective oxide layer
- distinguish apparent unreactivity from aluminium’s position in the reactivity series
- explain delayed reactions of aluminium with acids and copper(II) sulfate
- apply protective-oxide reasoning to aluminium and titanium corrosion resistance
CAIE IGCSE Chemistry 9.4.5 Apparent Unreactivity of Aluminium in Questions question 1
[Maximum number: 1]
Aluminium objects do not need protection from corrosion.
Iron objects must be protected from corrosion.
Which statement explains why aluminium resists corrosion?
A
Aluminium does not form ions easily.
B
Aluminium does not react with water or air.
C
Aluminium has a protective oxide layer.
D
Aluminium is below iron in the reactivity series.
C
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