Question

What is corrosion????​

Answer 1

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Metals are eaten up gradually in the presence of moisture,air and chemicals.

E.g. Corrosion of iron is known as rusting.

Answer 2

Corrosion is a chemical reaction in which molecules break down due to a chemical reaction with it's surroundings. Most often, corrosion is the electrochemical oxidation of a metal (such as iron "corroding" to form iron oxide, a.k.a. rust).

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