on heating copper powder in air the surface of copper powder is coated with black CuO. How can this black colour id converted into brown copper,Write the chemcal reaction that occurs during the colour change

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Solution

CuO can also be reduced to copper using hydrogen, carbon monoxide or carbon.

CuO + H₂ → Cu + H₂O

CuO + CO → Cu + CO₂

2CuO + C → 2Cu + CO₂

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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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on heating copper powder in air the surface of copper powder is coated with black CuO. How can this black colour id converted into brown copper,Write the chemcal reaction that occurs during the colour change

CuO can also be reduced to copper using hydrogen, carbon monoxide or carbon. CuO + H2 → Cu + H2O CuO + CO → Cu + CO2 2CuO + C → 2Cu + CO2

CuO can also be reduced to copper using hydrogen, carbon monoxide or carbon.

CuO + H₂ → Cu + H₂O

CuO + CO → Cu + CO₂

2CuO + C → 2Cu + CO₂