The reaction between an acid and a base is known as

Options

A. condensation reaction
B. addition reaction
C. neutralisation reaction
D. elimination reaction.

Explanation

**Step-by-Step Solution:**

1. **Identify the Reactants**: In a chemical reaction, we first identify the reactants involved. In this case, the reactants are an acid and a base. For example, hydrochloric acid (HCl) and sodium hydroxide (NaOH).

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

3. **Write the Reaction**: The general form of the reaction can be represented as:
\[ \text{Acid} + \text{Base} \rightarrow \text{Salt} + \text{Water} \]
For example:
\[ \text{HCl} + \text{NaOH} \rightarrow \text{NaCl} + \text{H}_2\text{O} \]

4. **Define the Type of Reaction**: The specific type of reaction that occurs between an acid and a base is known as a **neutralization reaction**. This is because the acid and base neutralize each other's properties.

5. **Conclusion**: Therefore, the answer to the question is that the reaction between an acid and a base is called a **neutralization reaction**.

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