why does server get tarnished exposure to air?Give reason why?
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Explanation:
when silver articles exposed to air silver racts with Sulphur present in the atmosphere and form a black layer of silver sulphide on the surface. copper articles get tarnished by reacting with air and water. due to this, a layer is formed over copper vessels.
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When silver metal or ornaments made of silver get exposed to air, they get decolourised or we can say tarnished. It is because in the atmosphere, a silver metal reacts with the hydrogen sulphide and oxygen present in the air and it leads to formation of compounds which leads to tarnishing of silver ornaments.
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