Chemistry
Define rusting. What are the two necessary conditions for rusting of iron ? Give the chemical name of rust.
Air
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Answer
Rusting is a chemical process which takes place in presence of moist air. When some iron objects like iron scraps or bright iron nails are kept in moist air for a few days, their surface gets coated with a reddish brown powdery mass which is commonly called rust.
Conditions for rusting :
- Presence of Air (oxygen)
- Presence of Moisture (water)
Chemical name of rust : Hydrated iron oxide (Fe2O3.xH2O)
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