Question

what do you observe when dilute HCl is added to copper oxide​

Answer 1

When dilute HCl is added to a small amount of copper oxide in a beaker, a greenish yellow gas is released and bluish green solution is formed. Since, the metal oxides such as Copper oxide (CuO) is basic in nature, it reacts with acids such as HCl to form the corresponding salt and water.


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Answer 2

Answer:

blue green color imparted

Explanation:

When dilute hydrochloric acid to copper oxide powder, blue green colour is imparted due to the formation of copper chloride CuCl2.