a 12. Silver article turns black when kept in the open for a few days due to formation of (a) HS (b) AgS (c) AgSO4 (d) Ag2S
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: A silver article turns black when kept in the open for a few days due to the formation of (1) H2S (2) AgS (3) AgSO4 (4) Ag2S. The phenomenon is known as corrosion. ... The black substance obtained is known as silver sulphide.
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b) Ags
when silver article is exposed for few days it turns black because of the layer of sulphur which had formed by the gases
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