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When copper is exposed to atmosphere for...

When copper is exposed to atmosphere for a longer time, a green mass deposits on its surface. Discuss the chemical reaction involved.

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Text Solution

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Moist air containing some `CO_2` attacks metal slowly forming a green basic carbonate as:
`2Cu+CO_2+O_2+H_2OtoCu(OH)_2CuCO_3`
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कॉपर को वायु में खुला छोड़ने पर वह हरे रंग का हो जाता है। क्यों ?

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