Question

What is antioxidants?

More details about oxidation and reduction with interesting examples?

Why corrosion happen layer by layer

Answer 1

Antioxidants are molecules that inhibit the oxidation of other molecules. Oxidation is a chemical reaction that can produce free radicals, leading to chain reactions that may damage cells. Antioxidants such as thiols or ascorbic acid terminate these chain reactions
metal reacts with moisture layer by layer so corrosion happens layer by layer