Question detail
Explain why aluminium resists further corrosion.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Using materials
Question
Explain why aluminium resists further corrosion.
Answer
Aluminium resists further corrosion due to the formation of a thin layer of aluminium oxide on its surface. This oxide layer acts as a protective barrier, preventing moisture and air from reaching the underlying metal and causing further corrosion.
Explanation
This question tests the student's understanding of the protective properties of aluminium oxide and its role in preventing corrosion. It requires knowledge of chemical reactions and material properties.
Common mistake
Aluminium Corrosion Resistance
Students often think that aluminium does not corrode at all.
Explain that aluminium does corrode, but the oxide coating that forms protects it from further corrosion.
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