Question

what do you understand by rusting?

Answer 1

A brown layer formed on iron objects with coming in contact with moisture and air.

Answer 2

dear friend here your answer ::

Rust is an iron oxide, usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture.
Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances.
Rust consists of hydrated iron(III) oxides Fe2O.

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