Question

State two ways to prevent the rusting of iron.

Answer 1

Iron rusting can be prevented by two methods:

1. Surface Coating: Applying oil, grease, or paint creates a waterproof barrier. This prevents atmospheric moisture and oxygen from contacting the iron surface, thus inhibiting rust formation.
2. Galvanization: This process involves coating the iron article with a layer of zinc. The zinc layer acts as a barrier, preventing contact between the iron and oxygen or moisture, thereby preventing rust.