Silver gets corroded due to presence of what in air
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Answer:
Explanation:
Metals have a tendency to change back to their original state of existence that is the ore from which these been extracted and they do so by their interaction with the environment. The atmospheric air contains moisture and certain dissolved gases like oxygen, carbon dioxide, sulphur dioxide, hydrogen sulphide and the like. Silver metal is extracted mainly from its sulphide ores like argentite (silver glance) as a white lustrous metal, which remains untarnished in air free from hydrogen sulphide.
But in the presence of trace amounts of hydrogen sulphide in atmosphere, silver forms a film of silver sulphide that is black.
The answer is hydrogen sulphide
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Silver gets corroded due to presence of Hydrogen sulfide in air.
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