Question

which substance is coated on the surface of iron to protect the surface from rusting​

Answer 1

Answer:

zinc is coated on the surface of iron to protect it from rusting .It is known as galvanization .Nickel , Chromium can also be used to protect iron from rusting.

Answer 2

Answer:

Rust is an iron oxide, a 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.[1] Rust consists of hydrated iron(III) oxides Fe2O3·nH2O and iron(III) oxide-hydroxide (FeO(OH), Fe(OH)3).