Antacids are used to remove

Options

A. body pain
B. acidlty
C. basicity
D. headache

Explanation

**Step-by-Step Solution:**

1. **Understanding Antacids:**
Antacids are substances that help neutralize stomach acidity. They are commonly used to relieve symptoms of heartburn, indigestion, and upset stomach.

2. **Identifying the Purpose of Antacids:**
The primary purpose of antacids is to reduce acidity in the stomach. When the stomach produces excess acid, it can lead to discomfort and various gastrointestinal issues.

3. **Chemical Nature of Antacids:**
Antacids are typically basic in nature. They work through a neutralization reaction where the base in the antacid reacts with the excess acid in the stomach to form water and a salt.

4. **Example of Antacid Reaction:**
A common example of an antacid is magnesium hydroxide (Mg(OH)₂). When it reacts with hydrochloric acid (HCl) in the stomach, the reaction can be represented as:
\[ Mg(OH)₂ + 2HCl \rightarrow MgCl₂ + 2H₂O \]
This reaction shows how magnesium hydroxide neutralizes the acid, producing magnesium chloride and water.

5. **Conclusion:**
Therefore, antacids are used to remove acidity in the stomach. The correct answer to the question is option number 2: acidity.

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