Question

Explain metallic corroison.Write answers of the given question in details.

Answer 1

Hey

Corrosion is defined as an attack on a material as a result of chemical, frequently electrochemical reaction, with the surrounding medium. According to this definition, the term corrosion can be applied to all materials, including non-metals. The word corrosion is mainly used in conjunction with metallic materials

Apart from gold, platinum and a few others, metals do not occur in the nature in their pure form. They are normally chemically bound to other substances in ores, such as sulphides, oxides, etc. Energy must be expended (e.g. in a blast furnace) to extract the metals from the sulphides, oxides, etc to obtain pure metals.

Pure metals contain more bound energy, representing a higher energy state than that found in the nature as sulphides or oxides.

Hope it helps you :")