Question

why does aluminium not corrode easily​

Answer 1

Explanation:

Aluminum "rust", or oxidation, is not the red kind found on iron and steel. In fact, aluminum oxidation occurs extremely easily but is not a much different color, nor does it build up over time like rust does. Aluminum oxide actually protects the aluminum from corrosion. It is 'self healing' -- if you scratch it, the scratched aluminum will re-oxidise very quickly.

Aluminium does not corrode easily because it reacts with atmospheric oxygen to form a thin layer of aluminium oxide over it. This layer prevents further corrosing of aluminium.

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Answer 2

Answer:

• because its surface is naturally protected by aluminium oxide which prevents the metal coming contact with air and moisture.
• Aluminium oxide is hardest layer and stable layer and it is hard ceramic and unreactive to water.
• Aluminium oxide forms almost instantly upon exposure to air.

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