Question

Why does silver compounds react with sulphur to form black layer.​

Answer 1

When silver articles exposed to air silver reacts with sulphur present in the atmosphere and form a black layer of silver sulphide on the surface.Copper articles get vanished by reacting with aie ans water

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Answer 2

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. Here, the black layer is Silver Sulphide.