Question

Necessary conditions for iron to be rusted?

Answer 1

The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.

Answer 2

Explanation:

This phenomenon takes place in the presence of moisture and air. So, the presence of air and water vapor in air are two necessary conditions for the rusting of iron.