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Aluminium is a good roofing material because it

Chemistry
WAEC 2008

Aluminium is a good roofing material because it

  • A. is strong and does not conduct heat and electricity
  • B. readily absorbs light
  • C. forms an oxide film over its surface which prevents corrosion
  • D. is flexible and can conduct heat
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Correct Answer: Option C
Explanation

The thin coat of aluminum oxide formed prevents further attack of the metal by atmospheric oxygen and water.

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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