Question

what is meant by corrosion of metal? what is the chemical equation of rust?


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Answer 1

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Corrosion is a natural process, which converts a refined metal to a more chemically stable form, such as its oxide, hydroxide, or sulphide. It is the gradual destruction of materials (usually metals) by chemical and/or electrochemical reaction with their environment.

Rust is hydrated iron (III) oxide:

Fe2O3. xH2O

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