When silver turns black with sulphur compound is there any role of oxygen is used in the corrosion
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Silver turns black when kept in the air because it reacts with sulphur compounds such as hydrogen sulphide (H2S) present in air
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The tarnish is actually the result of a chemical reaction between the silver and sulfur-containing substances in the air. The silver is actually combining with sulfur and forming silver sulfide. ... When a thin coating of silver sulfide forms on the surface of silver, it darkens the silver. That's what we call 'tarnish.
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