A) Define corrosion. Under what conditions does corrosion take place? b) Give the formula and chemical name of rust. c) Give two method to slow down rancidity.
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When some metals are exposed to moisture,acids etc.,they tarnish due to the formation of respective metal oxide on their surface.this process is called corrosion.keeping food in air tight containerd helps to slow down oxidation process.
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Iron in presence of moist air is oxidized to give rust. This process is known as corrosion.
Hydrated Iron (III) oxide is known as rust.
The chemical formula is Fe
2
O
3
.xH
2
O.
Rusting of iron can be prevented by painting it or galvanizing.
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