Question

what is the difference between corrosion and rusting? ​

Answer 1

Rusting is a type of corrosion.

A chemical or electrochemical reaction between metal and its surrounding which results in  the deterioration or eating away of metal is called corrosion of metals. 

Rusting is a term used specifically for corrosion of iron.

Answer 2

Here is your answer ;

Rust is a term used to describe the corrosion of iron and iron alloys. Corrosion is a term that covers the destruc- tion of any metal. In general,corrosion is the deterioration of a metal by oxidation or other chemical action

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