Extraction of Metals - Result Question 78
81. Work out the following using chemical equations.
In moist air, copper corrodes to produce a green layer on the surface.
(1998)
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Solution:
- $2 Cu+H _2 O+CO _2+O _2 \longrightarrow \underset{\text{Green (basic copper carbonate)}}{Cu(OH) _2 \cdot CuCO _3}$
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