Question

what is meant by
Rust​

Answer 1

$\large\orange{\mathtt{What \: is \: meant \: by \: rust?}}$

Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Many other metals undergo similar corrosion, but the resulting oxides are not commonly called "rust".

Answer 2

Answer:

Rust is a general name for a complex of oxides and hydroxides of iron, which occur when iron or some alloys that contain iron are exposed to oxygen and moisture for a long period of time. Over time, the oxygen combines with the metal forming new compounds collectively called rust.