why are all food articles preferably packed in aluminium foils?
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Answer: Aluminium foils do not corrode in atmosphere is in each kept for a long time. Actually, a protective coating of aluminium oxide is formed on the surface of the aluminium foil. It stops any further reaction of the metal with air and water. The food articles do not get spoiled.
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Aluminium foils are non-reactive to the nature with the atmosphere. This means that after the first layer of aluminium, reaction is not possible.
Hence, Aluminium foils are preferred
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