Question

Under what conditions there are more chances for iron to be rusted?

Answer 1

Oxygen water and iron

Answer 2

Rusting of iron occurs due to two main reasons:

1) the presence of oxygen

2) the presence of moisture or water

And if these two factors are present near an iron piece, it is likely to get rust.

Rusting is a chemical reaction which causes the iron to react with moisture and oxygen present in the air. The iron oxidizes to form a brownish layer on it.