Question

Define rusting? What are the two-necessary conditions for rusting of iron? Give the chemical name of rust.

Answer 1

To answer this question, we first need to understand what are elements. An element is a pure substance made up entirely of atoms with the same number of protons in their atomic nuclei, as defined by chemistry. Chemical elements, unlike chemical compounds, cannot be broken down chemically into simpler molecules.

Complete answer:
Rusting - Rust is an iron oxide, a typically reddish-brown oxide generated when iron and oxygen react catalytically in the presence of water or air moisture. Rust is made up of hydrous iron (III) oxides and iron (III) oxide-hydroxide, and it is commonly associated with refined iron corrosion.
Two necessary conditions for rusting of iron –
Metallic iron, which is found naturally in the ore hematite as iron oxide, tends to return to a similar condition when exposed to air (hydrogen, oxygen, nitrogen, and other elements), as well as water. The oxidation reaction occurs when iron metal returns to an energetically favorable state, causing corrosion. When rust forms, it releases energy. The rusting process can be broken down into three stages: The creation of iron (II) ions from the metal, followed by the formation of hydroxide ions and their interaction with oxygen to form rust.
Chemical name of rust - Rust is technically Hydrated Iron (III) Oxide, commonly known as iron oxide, since it is formed when iron combines with oxygen and water in an oxidizing process.
So, we conclude that the oxidation of iron or iron things is referred to as rusting. It occurs in the presence of both air and moisture. It's a long and winding road. Rust forms on iron things as a result of rusting. It's a reddish-orange iron oxide that forms when iron is oxidized in the presence of oxygen and moisture or water.

Note :
Galvanizing is a rust-prevention technique. A thin layer of zinc is applied to the iron or steel workpiece. This prevents oxygen and water from reaching the metal beneath, but it also serves as a sacrificial metal. Because zinc is more reactive than iron, it oxidizes faster than the iron thing.