Chemistrymedium · Past Paper
Duralumin is widely used in the aircraft industry because:
AIt is the cheapest metal
BIt is very heavy and stable
CIt is light and has high tensile strength
DIt is a liquid at high altitudes
✓ Correct Answer: C — It is light and has high tensile strength
Duralumin (Al, Cu, Mg, Mn) is favored for aircraft because it combines the lightness of aluminum with great strength.
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