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प्रश्न
Silver metal does not combine easily with oxygen but silver jewellery tarnishes after some time. How?
लघु उत्तरीय
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उत्तर
Yes, silver metal does not react easily with oxygen, but it reacts with trace amounts of hydrogen sulphide gas present in the air. This reaction forms a thin black layer of silver sulphide (Ag2S) on the surface, causing the jewellery to lose its shine and tarnish over time.
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