Question

Which of the component in air turn silver article black ?

Answer 1

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.

Answer 2

Silver article turns black when kept in the air because silver article reacts with Sulphur compounds  present in air. The phenomenon is called corrosion. For silver particularly, it is called tarnishing of silver.

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