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Silver jewellery turns dark over a …

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Silver jewellery turns dark over a period of time . Give reasons .

Posted by Priyanka Tewari 7 years, 5 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 5 months ago

Silver articles, when exposed to air become black after sometime. This is because the silver metal reacts with sulphur present in the atmosphere and forms silver sulphide. Thus, a layer of silver sulphide is formed on the surface of silver articles, because of which they appear dull and black.

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CBSE > Class 08 > Science