Question

explain the chemical nature of rust

Answer 1

Answer:

• Rust is chemically the oxide of iron.

Explanation:

•Rust is generally red in colour and is formed by the reaction of iron with oxygen in the presence of water.

• Chemically rust can be said as hydrated iron oxides and can be expressed as Fe2O3.nH2O.

• It is also termed as Corrosion of iron and its alloys like steel.

• In the process of rusting water acts as catalysts because rusting cannot occur in the absence of water.

• Therefore, rusting cannot occur in dry air but in moist air ( air with water).

• To prevent the iron from rusting it should be kept away from the moisture, the other process include coating the iron and its alloys with other materials which would prevent rusting.

• For example, stainless steel, the alloy of iron is coated with chromium which protects it from rusting.

Answer 2

Explanation:

Rust is red in colour and it's chemical formula is Fe2O3.H2O