what is rust ? how is it formed? Related: NCERT Solution: Chapter 6 - Physical & Chemical Changes, Class 7, Science

Question

what is rust ? how is it formed? Related:  NCERT Solution: Chapter 6 - Physical & Chemical Changes, Class 7, Science

Answer

A brownish substance in the iron made when iron come in contact with air and water

Answer

Rust is a process where iron losses its quality. it is formed by moist air and oxygen.

Answer

Rust is a type of corrosion that occurs on the surface of iron or steel when it comes into contact with oxygen and moisture. It is a reddish-brown, flaky substance that weakens and deteriorates the metal.

Rust forms through a chemical process called oxidation. When iron or steel is exposed to water or humid conditions, a reaction occurs between the iron and the oxygen in the air. This reaction produces hydrated iron(III) oxide, which is commonly known as rust. The presence of water is essential for this reaction to take place, as it helps to speed up the process.

The chemical reaction can be represented by the following equation:

4Fe + 3O2 + 6H2O → 4Fe(OH)3

In this equation, Fe represents iron, O2 represents oxygen, and H2O represents water. The resulting compound, Fe(OH)3, is rust.

Rust is a common problem for iron and steel objects, as it weakens the material and can lead to structural damage or failure. To prevent rusting, protective coatings such as paint or galvanization are often applied to the surface of iron or steel objects.

Answer

Rust is process in which iron is start loosing its colour and become in the presence of oxygen and humidity.EQUATION: Fe + O2 + H2O___Fe2 O3 H20

Answer

Rust is a brown coating in iron because of moisture and oxygen. It is a chemical change and rust is not attracted by iron

Answer

If we leave a piece of iron in the open for sometimes it acquires a film of Brownish substance in this process called rusting

Answer

Rust is a process by which iron  in contact with water/moisture and air forming brownish layer is called rust

Answer

Rust is a process where iron losses it's quality . it is formed when it is used a many year .

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