Iron nails get a brown colour deposit on exposure of air . give reason
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Answer:
Iron nails get a brown colour deposit on exposure of air. This process is known as rusting.
Explanation:
The process of conversion of iron into its hydrated form of oxide in the presence of air and moisture ( humid atmosphere ) is called rusting. Rust is hydrated ferric oxide
Fe2O3.xH2O (x is the number of water molecules which is variable )
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