plzzzz answer it............
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AL. ALUMINIUM MAETAL IS PROTECTED BY A LAYER OF ITS OWN OXIDE.
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HEY!!! HERE IS YOUR ANSWER :)
The metal Aluminium is protected by a layer of it's own oxide (Aluminium Oxide Al2O3). Aluminium does not rust or corrode under moist conditions, because it's surface is covered with a thin layer of aluminium oxide that prevents the metal underneath it to come in contact with the moisture in the atmosphere.
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