Which of the following statement is not true ?

Options

A. The partial pressure of oxygen in deoxygenated blood is 40 mm Hg
B. The partial pressure of oxygen in deoxygenated blood is 95 mm Hg
C. The partial pressure of oxygen in alveolar air is 104 mm Hg
D. The partial pressure of `CO_(2)` in deoxygenated blood is 40 mmHg.

Explanation

To solve the question, "Which of the following statement is not true?" we will analyze each statement provided in the options.

### Step-by-Step Solution:

1. **Understanding Deoxygenated Blood**:
- Deoxygenated blood is blood that has delivered its oxygen to the tissues and is returning to the lungs to receive more oxygen.
- The partial pressure of oxygen (pO2) in deoxygenated blood is typically lower than in oxygenated blood.

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