The main cause of acidity in the stomach is

Options

A. release of extra gastric acids which decrease the pH level
B. indigestion and pain in larger intestine
C. increase the pH level in the stomach
D. release of extra bile juice which increases alkaline medium in stomach .

Answer

**Step-by-Step Solution:**

1. **Understanding Acidity in the Stomach:**
- The stomach produces gastric acid, primarily hydrochloric acid (HCl), which is essential for digestion. This acid helps break down food and provides an acidic environment for digestive enzymes to function.

2. **Identifying the Main Cause of Acidity:**
- Acidity in the stomach is primarily caused by the excessive secretion of gastric acid (HCl). When the stomach produces too much acid, it leads to a decrease in the pH level of the stomach contents, making the environment more acidic.

3. **Effects of Excess Gastric Acid:**
- When there is an excess of gastric acid, it can lead to symptoms such as indigestion, heartburn, and pain. This is because the high acidity can irritate the stomach lining and esophagus.

4. **Other Factors:**
- While factors like bile juice can influence the digestive process, they do not directly cause acidity. Bile is alkaline and helps neutralize stomach acid, thus increasing the pH level, which is opposite to causing acidity.

5. **Conclusion:**
- The main cause of acidity in the stomach is the excessive release of gastric acid (HCl), which decreases the pH level and leads to the symptoms associated with acidity.

**Final Answer:**
The main cause of acidity in the stomach is the excessive release of gastric acid (HCl), which decreases the pH level.

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