Name the black colour substance formed when silver is exposed

1.	Name the black colour substance formed when silver is exposed
Answer» ANSWER _________________________ SILVER SULPHIDE ( Ag2S) Silver article TURNS black when kept in the air because silver article reacts with sulphur compounds such as hydrogen sulphide (H2S) PRESENT in air. The phenomenon is called corrosion. For silver PARTICULARLY, it is called tarnishing of silver

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