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Question
A is a silvery-white metal. A combines with O2 to form B at 800°C, the alloy of A is used in making the aircraft. Find A and B.
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Solution
A – Silvery white metal – Aluminium
\[\ce{4Al + 3O2 -> \underset{\text{Aluminium oxide}}{2Al2O3(B)}}\]
The alloys of aluminium, Duralumin and Magnalium are used in making the aircraft.
A – Aluminium; B – Aluminium oxide.
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