Question

7. Under which conditions does iron rust? How we can prevent it​

Answer 1

Answer:

Iron and steel rust when they come into contact with water and oxygen. They rust faster in salt water or acid rain. Aluminum, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminum oxide. The presence of water and oxygen is essential for the rusting of iron.

Rusting can be prevented by many methods. One method is to keep iron for corrosion by paint it. The layers of paint resist oxygen and water to form rust on the surface of iron as paint prevent iron to contact them directly. The iron is protected from corrosion as long as the paint is there.

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Answer 2

Namaste

Rusting of iron is due to the reaction of iron piece and water or moisture which is present in the atmosphere.

Rusting of iron can be prevented by:

• painting