On heating copper powder in air the surface of copper powder becomes c – InterviewSolution

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1.	On heating copper powder in air the surface of copper powder becomes coated with black CuO . How can this black coating be converted into brown copper? Write a chemical equation for the reaction that occurs during the colour change.
Answer» On heating copper powder in air the surface of copper powder becomes coated with black CuO . How can this black coating be converted into brown copper? Write a chemical equation for the reaction that occurs during the colour change.

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