Question

Copper react with moist carbon dioxide in the air and gains green court with green coat is

Answer 1

Copper Vessels turn greenish black with the passage of time as the copper is oxidized to copper oxide and most of it reacts with carbon dioxide in the atmosphere to form basic copper carbonate which is green in colour, as per the equation —

2Cu+H2O+CO2=CuCO4+CU(OH)2

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