Physics, asked by Rudra2196, 1 year ago

what is means by corrosion?​

Answers

Answered by Nereida
2

Answer:

Corrosion is a chemical reaction that happens on metals due to the attack of acid, water or moisture.

Skme examples are:-

  • The silver articles become black after sometime when exposed to air this is because of the presence of sulphur in air which forms a coating of sulphur sulphide on the article.

  • The copper reacts with moist carbon dioxide in the air and loses its ground surface by gaining a green coat which is basic copper carbonate.

  • Wheniron is exposed to moist air for a long time it acquires a coating of brown substance which we normally call as rust.

Prevention of corrosion:-

  • Painting
  • Oiling
  • Greasing
  • Galvanising
  • Chrome plating
  • Anodising
  • Making Alloys

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