Question

20. Reaction of copper with moist air:
Copper+Water+ CO2+ O2 ----> Copper
Hydroxide +
O Copper oxide
O Copper carbonate
O Copper
O Copper sulphate​

Answer 1

Answer:

copper oxide is right answer

Explanation:

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Answer 2

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Copper Oxide

Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.