Question

why is a metal oxide called a basic oxide .name the products obtained when copper oxide reacts with dilute hydrochloric acid​

Answer 1

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★Why is metal oxide called basic oxide?

✔Metallic oxides are basic in nature because they react with dilute acids to form salt and water. Group 1 & 2 oxides are highly alkaline in nature that is why group 1 called alkaline metals and group 2 called Alkaline Earth metals.

★Products obtained:-

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

Answer 2

Answer:

Metallic oxides are basic in nature because they react with dilute acids to form salt and water.

Copper(II) oxide dissolves in mineral acids such as hydrochloric acid, sulfuric acid or nitric acid to give the corresponding copper(II) salts.

CuO + 2 HNO3 → Cu(NO3)2 + H2O. CuO + 2 HCl → CuCl2 + H2O.

Explanation:

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