Question

Explain how the painting of an iron gate prevents it from rusting?

Answer 1

Rusting:

• When iron gets exposed to moisture and air present in the atmosphere its forms iron oxides on its surface causing the formation of rust.
• Paint is generally an oil-based solution that is inert to atmospheric conditions like moisture and oxygen.
• When the paint is applied to the iron rod, it disconnects the reach of air and moisture to the iron rod and acts as a protective film.

So, applying paint to an iron gate prevents rusting because paint acts as an inert layer for environmental conditions like air and moisture.