Science, asked by vishalydv4841, 1 year ago

Why is a green layer formed on a copper statue when a left in open for long time?how will the copper statue be affected if kept in airtight
transparent plastic box?justify your answer

Answers

Answered by bavanuja6182
2

The greenish layer which appears on the surface of Copper if actually the corrosion of Copper. Copper firsts reacts with Oxygen to form Copper Oxide. Further this Copper Oxide reacts with Carbon dioxide to form Copper carbonate.


2Cu + O2 ―> 2CuO

CuO + CO2 ―> CuCO3

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