Question

Why is rusting of iron is a cause of concern for countries

Answer 1

Answer:

Fe reacts with the moisture and oxygen content in air to form iron oxides. The engineering properties (strength, hardness) decreases proportionally with the magnitude of corrosion. Hence, the stability of the structure decreases, a serious phenomenon.

Explanation:

Rust is formed when an iron surface is exposed to oxygen in the presence of moisture. Several varieties of iron-oxides can form. Rust is non-toxic and so presents no biological hazards. The main environmental impacts of rust is the degradation of steel and iron structures, such as bridges, automobiles, etc.