How will you recognize the corrosion of silver?

Corrosion of silver is not very prominent as in the case of corrosion of iron. Corrosion of silver means the blackening of silver. Silver articles become black when exposed to air because:

i. The silver metal reacts with the sulphur present in the air and forms silver sulphide. The reaction is:

2Ag + H₂S (present in air) → Ag₂S + H₂

ii. The change of black colour is due to the formation of silver sulphide (Ag₂S)

iii. This phenomenon is called corrosion of silver.