why silver utensils become dark when exposed to air
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Answer:
Silver becomes black because of hydrogen sulfide (sulfur), a substance that occurs in the air. When silver comes into contact with it, a chemical reaction takes place and a black layer is formed.
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Explanation:
As we know there is some is some amount of traces of hydrogen sulfide (H2S) is present in the air so silver react with this compound and forms silver sulfide (Ag2S) which is black in nature and one of the most insoluble salts of silver and this is what causes the tarnish (i.e. a result of exposure to air and moisture).
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