Question

copper vessel geta green coat when left exposed to air in rainy season.

Answer 1

CU+atmospheric air = CuCO3.Cu(OH)2

This new compound formed is of green colour and is named copper hydrogen carbonate.Its basic in nature.

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Answer 2

Answer:

due to corosion

Explanation:

in rainy season air are moist and copper and ion reacts with it so it forms green coated