Fill in the following blanks with suitable words :
When an acid is mixed with a base, a ….....reaction takes place.

Answer

To fill in the blank in the statement "When an acid is mixed with a base, a …..... reaction takes place," we need to identify the type of reaction that occurs when these two substances interact.

### Step-by-Step Solution:

1. **Identify the Reactants**: We have two types of substances: an acid and a base. An acid is a substance that donates protons (H⁺ ions), while a base is a substance that accepts protons (OH⁻ ions).

2. **Understand the Reaction**: When an acid and a base react, they undergo a specific type of chemical reaction. This reaction typically results in the formation of salt and water.

3. **Recognize the Products**: The products of this reaction are a salt (which is formed from the cation of the base and the anion of the acid) and water (H₂O).

4. **Name the Reaction**: The specific type of reaction that occurs when an acid reacts with a base is called a "neutralization reaction." This is because the acid and base neutralize each other's properties.

5. **Fill in the Blank**: Therefore, the correct term to fill in the blank is "neutralization."

### Final Answer:
When an acid is mixed with a base, a **neutralization** reaction takes place.

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