when a copper vessel is exposed to moist air for a longer time. it acquires a dull green coating. why
Answers
Answered by
70
the moist air contains oxygen which will reacts with copper to produce copper oxide .normally the copperoxide will be in green color .this is why the copper vessel is exposed to moist air for long time.it acquires a dull green coating.
Saran03:
Cu+O--->CuO
no it is not the answer
its correct ya
options a) contains copper hydroxide b) contains copper carbonate c) is formed when copper reacts with moist air d) all
no ya
not correct ya
what is c
option
Answered by
122
When copper vessel is exposed to air turns green in colour due to corrosion. It is so because the metal reacts with moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide, which gives a green colour to the surface of copper vessel.
The reaction is as follows:
2Cu + H2O + CO2 + O2 → Cu(OH)2 + CuCO3
Please mark it
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