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Which two substances are necessary for rusting of iron?

Answer and explanation

Correct answer: Oxygen and water

Rusting of iron is an oxidation process that requires both oxygen and water. In the presence of water, oxygen reacts with iron to form hydrated iron(III) oxide, commonly called rust. Carbon dioxide may affect the rate of corrosion, but it is not essential for rusting.

Related tags

ScienceClass 10Chemical ReactionsRustingCorrosionIron Oxidation

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