Question

Why copper turns black on reacting with air??​

Answer 1

Answer:

The color of the heated copper powder becomes black when air is passed over it because of its reaction with oxygen i.e. air. When it reacts with oxygen it forms copper oxide which is black in color. ... Yet again, if air is passed over copper, the metal will get oxidized again, forming black copper oxide.

Answer 2

Explanation:

here is your answer

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