- Books Name
- Iti Shree Science Book
- Publication
- Vaishnav Publication
- Course
- CBSE Class 10
- Subject
- Science
Corrosion
When exposed to moist air for a long period of time, metals become corroded. This is known as Corrosion. For Example, Silver reacts with moist air and becomes black in colour due to silver sulphide coating.
Iron + oxygen → Iron (III) oxide
Fe + O2 → Fe2O3
Prevention of Corrosion
- Rusting of iron can be prevented by oiling, galvanising, painting, greasing etc.
- To protect steel and iron from rusting, a thin layer of zinc is coated on them, this is known as Galvanization.