Question

5. Give chemical formula of rust .Why utensils made of aluminium donot corrode?​

Answer 1

Answer:

Aluminum alloys contain almost no iron and without iron, the metal can't actually rust, but it does oxidize. When the alloy is exposed to water, a film of aluminum oxide forms quickly on the surface. The hard oxide layer is quite resistant to further corrosion and protects the underlying metal.

Answer 2

Answer:

iron is when open and in contact with air and water the substance which is made is called rust

to prevent the rust we should paint the object oil it

Explanation:

no only iron not aluminum

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