Question

1. What is meant by corrosion?
2. Have you seen the following things?
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Answer 1

1) Corrosion is the process of degradation of metals due to action of atmospheric gases,water and acids

2) Yes, corrosion is seen in daily life.

Examples are -

* Rusting Of Iron

* Green coating on copper

* Blackening of silver articles

Answer 2

it is the slow and gradual conversion of metal into its undesirable compounds

yes...

such as rusting of iron

silver getting black due to formation of sulphide layer