What is rust? Give the equation for the formation of rust.
What is rust? Give the equation for the formation of rust.
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Rusting is the slow oxidation of iron by atmospheric oxygen in the presence of water.
Equation:
4Fe + 3O2 +2x H2O → 2Fe2O2.xH2O
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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)
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