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Which Metal Becomes Black in the Presence of Hydrogen Sulphide Gas in Air? - CBSE Class 10 - Science

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Question

Which metal becomes black in the presence of hydrogen sulphide gas in air?

Solution

Silver metal becomes black in the presence of hydrogen sulphide gas in the air. Silver reacts with hydrogen sulphide gas in the air and forms a thin black layer of silver sulphide (Ag2S) on it. Therefore, silver jewellery or ornaments become dull due to the formation of silver sulphide coating on their surface.

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Solution Which Metal Becomes Black in the Presence of Hydrogen Sulphide Gas in Air? Concept: Occurrence of Metals - Extracting Metals Low in the Activity Series.
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