Question

What Is Corrosion ????​

Answer 1

$\fbox{ \fbox{ \bold{ \large{ \: \: Corrosion \: \: }}}}$

When metal is exposed to the air, moist water and acid etc. for some time the thin layer of oxide is formed is called Corrosion

$\large{\bold{ \underline{ \: Methods \: To \: Prevent \: Corrosion \: \: \: }}}$

• Oiling
• Painting
• Greasing
• Galvanisation
• Tin or Chromium plating
• Alloying

Answer 2

Corrosion:

Process of rusting of metal when exposed to air, water, moisture etc. Due to this it forms a layer above it's surface. This is known as Corrosion.

Example:

When Fe (iron) came in contact with external environment or air, water etc. then it develops a layer of Fe2O3 (Ferric oxide) on it's surface.

Due to formation of this layer metal becomes weak.

Prevention:

• By painting.

• By greasing or oiling.

• By galvanisation.

• By alloying to make it stainless stell.

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