5. Silver articles become black on prolonged exposure to air. This is due to the formation
a. Silver oxide
b. Silver nitride
c. Silver sulphide
Silver nitrate
Answers
Answered by
2
Answer:
c.silver sulphide
Explanation:
silver reacts with atmospheric sulphur to form a coat of silver sulphide when exposed to air . This is basically called as corrosion of silver.
Answered by
34
Silver metal is highly unreactive, i.e., it does not react with oxygen.
But with prolonged exposure to air, it reacts with hydrogen sulphide gas (H2S).
Silver articles form a coating of silver sulphide (Ag2S) and lose their shine (get tarnished).
Hence the correct option is C.
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