Question
When kept in air for some time, a layer of green colored
basic carbonate forms on the metal, that metal is ___________________ .Solution
Copper metal when exposed to air turns green in colour due to corrosion. When a copper vessel is exposed to air in the rainy season, the metal reacts with gases, 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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