Corrosion and its Prevention
Corrosion and its Prevention
Corrosion:
Iron and many other metals react with oxygen and moisture present in the atmosphere. This phenomenon is called corrosion. The process of slow eating away of a metal due to the attack of atmospheric gases and moisture on its surface is called corrosion.
• Iron reacts with oxygen and moisture present in the atmosphere to form a brown, flaky substance called rust. Rusting of iron in an undesirable reaction because the layer of rust formed falls off, exposing the metal to further rusting.
Prevention of rusting:
Both air and water are needed together to rust the iron. The only way to prevent iron from rusting is to keep air and water away from it. It can be done by:
Iron is shiny gray initially but after some time forms the layer of hydrated Iron (III) oxide in the presence of _____________________ | |||
| Right Option : B | |||
| View Explanation | |||
In which of the following elements, corrosion eats up the whole of the metal? | |||
| Right Option : D | |||
| View Explanation | |||
What is the colour of the coating formed on the Copper when it react with moist carbon dioxide ? | |||
| Right Option : C | |||
| View Explanation | |||
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My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
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8thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
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10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
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8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
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Aman Kumar Shrivastava
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
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