Assertion: Copper is kept open in air, it slowly loses its shining brown surface and gains a green coating
Reason: Copper is highly reactive metal.
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Assertion: Copper is kept open in air, it slowly loses its shining brown surface and gains a green coating
Reason: Copper is highly reactive metal.
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Explanation:
Copper reacts with CO
2
present in the air and forms a green coating on its surface due to the formation of basic copper carbonate.
2Cu+O
2
+CO
2
+H
2
O→CuCO
3
.Cu(OH)
2
So, the correct option is C
ANSWER IS BOTH ARE CORRECT