Why do copper utensils turn green when they are exposed to air equation?
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When the utensils are exposed to air,copper get oxidised that is it gets corroded.
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Copper metal when exposed to air turns green in colour due to corrosion. When copper vessel is exposed to air in rainy season, the metal reacts with gases and moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide. This gives a green colour to the surface of copper metal.
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