Question

(a) What is meant by corrosion? Name any two methods used for the prevention of corrosion.​

Answer 1

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⏭️Corrosion is a process in which metal reacts with substances present in the environment to form surface compounds.

Prevention:

▶️(i) Galvanisation is a process to prevent corrosion of iron.

▶️(ii)Electroplating is also used to prevent corrosion.

Answer 2

corrosion

⏩ the eating up of metals by the action of air, moisture for chemical (such as an acid) on their surface is called corrosion.

⏩ corrosion of iron is called rusting.

methods used for prevention rusting

• by painting.
• by applying grease or oil.
• by galvanization process
• by tin -plating and chromium -plating.
• by allowing it to make stainless steel.

⏩ i hope it help you