What is rust? Give the equation for the formation of rust.

4 views

2 Answers

Rusting is the slow oxidation of iron by atmospheric oxygen in the presence of water.

Equation:

4Fe + 3O2 +2x H2O →  2Fe2O2.xH2O

4 views

When iron is exposed to moist air, it forms a layer of brown hydrated ferric oxide on its surface. This compound is known as rust and the phenomenon of formation of rust is known as rusting. 

4Fe + 3O2 + xH2O → 2Fe2O3 . xH2O (Rust)

4 views