what is rusting class 7

Rusting is a chemical process that occurs when iron and oxygen are exposed to water or moisture. It is an example of a chemical change where the process cannot be reversed, and a new substance is formed. The phenomenon of the formation of rust is called rusting, and rust is a red-orange flaky substance. Rusting of iron is characterized by the formation of a layer of a red, flaky substance that easily crumbles into a powder. This rust is formed from a redox reaction between oxygen and iron in an environment containing water, such as air containing high levels of moisture. The reaction of the rusting of iron involves an increase in the oxidation state of iron, accompanied by a loss of electrons. Rust is mostly made up of two different oxides of iron that vary in the oxidation state of the iron atom, which are iron(II) oxide or ferrous oxide and iron(III) oxide or ferric oxide. The most common methods to prevent rusting of iron are oiling, painting, and galvanization.