pH of stomach in human is about -

Options

A. 7
B. 3
C. 8
D. 11

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the pH of the stomach in humans. The options provided are 7, 3, 8, and 11.

2. **Identifying the Function of the Stomach**: The stomach is a muscular organ located on the left side of the upper abdomen. Its primary role is to aid in digestion.

3. **Role of Hydrochloric Acid**: The stomach secretes hydrochloric acid (HCl), which is essential for activating digestive enzymes. This indicates that the environment in the stomach is acidic.

4. **Understanding pH Scale**: The pH scale ranges from 0 to 14, where a pH of 7 is neutral. Values below 7 indicate acidity, and values above 7 indicate alkalinity.

5. **Determining the pH of Gastric Juice**: Since the stomach secretes hydrochloric acid, we can infer that the pH of gastric juice (the mixture of gastric acid and enzymes) is acidic.

6. **Identifying the pH Range**: The typical pH range of the stomach is between 1.5 to 3.5, which is significantly below 7.

7. **Evaluating the Options**:
- 7 is neutral and not acidic.
- 3 falls within the acidic range of the stomach.
- 8 and 11 are alkaline and therefore incorrect.

8. **Conclusion**: Based on the information, the correct answer is 3.

**Final Answer**: The pH of the stomach in humans is about **3**.

---