Question

why does silver get tranished on exposure to air
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Answer 1

Answer:

When silver is exposed to sulfur-containing gases in the air, it discolours and then darkens as it reacts with the gas to form a surface layer of tarnish.

Answer 2

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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).

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