Q23 of 270 Page 67

What happens when an acid reacts with a metal oxide? Explain with the help of an example. Write a balanced equation for the reaction involved.

Metal oxides are basic in nature. Hence, when an acid reacts with a metal oxide both neutralize each other. In this reaction, respective salt and water are formed.

Example: Calcium oxide is a metallic oxide, which is basic in nature. When an acid, such as hydrochloric acid, reacts with calcium oxide, neutralization reaction takes place. Calcium chloride and water is formed.


2HCl + CaO ⇨ CaCl2 + H2O




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