Chemistry Practicals Class 10

Corrosion of Iron

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About Simulation

  • In the simulation for the rusting of the iron experiment, you will observe changes in the appearance of the iron nails over time, noting differences in rust formation based on the varying conditions in each test tube.
  • By engaging with the content, you will gain insights into the chemical reactions and environmental conditions that facilitate the oxidation of iron, deepening your understanding of corrosion processes.
  • By varying the moisture content and air exposure in different test tubes, you can observe how these factors influence the rate and extent of rust formation on the iron nails, enhancing your comprehension of rusting mechanisms.
  • You will learn how factors such as humidity, temperature, and the presence of pollutants affect the corrosion rate.

Chemistry Practical Class

  • Through virtual exploration of corrosion prevention techniques such as coating, alloying, and cathodic protection, you will acquire practical knowledge applicable to reducing rusting in real-world scenarios.

Simulation Details

Duration – 30 Minutes
Easily Accessible
Languages – Odia & English
Platforms – Android & Windows


You must have observed that the new iron articles are shiny, but when left for some time, they get coated with a reddish-brown powder. This process is commonly known as the rusting of iron. Some other metals also get tarnished in this manner. Have you noticed the colour of the coating formed on copper and silver? When a metal is attacked by substances around it, such as moisture, acids, etc., it is said to corrode, and this process is called corrosion. The black coating on silver and the green coating on copper are other examples of corrosion.

In corrosion, metals are converted into more stable compounds such as metal oxides, metal sulphides, or metal hydroxides. Likewise, the rusting of iron involves the formation of iron oxides via the action of atmospheric moisture and oxygen.

Oxidation of iron metal with oxygen requires high temperature. The other alternative is to use the hydration energy of water. The outer layer of the iron nail reacts with oxygen in the presence of water to form its oxide.

Chemistry Practical Class

Prevention of Corrosion:
The rusting of iron can be prevented by painting, oiling, greasing, galvanising, chrome plating, anodising, or making alloys.

Galvanisation is a method of protecting steel and iron from rusting by coating them with a thin layer of zinc. The galvanised article is protected against rusting even if the zinc coating is broken.

Watch this video to learn more about chemistry.

Requirements for this Science Experiment

  • Iron nails
  • Distilled water
  • Oil
  • Calcium chloride
  • Test tubes
  • Test tube stand
  • Spatula
  • Bunsen burner
  • Tripod stand
  • Wire gauze
  • Rubber corks

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