Which of the following statement is not correct `:-`

Options

A. Formation of oxyhaemoglobin is a process of oxidation
B. Every 100ml of oxygenated blood can deliver around 5ml of `O_(2)` to tissue under physiological condition.
C. Dissociation curve is curve between percentage saturation of Hb with oxygen and partial pressure of oxygen.
D. High concentration of `CO_(2)` activates dissociation of oxyhaemoglobin is called Bohr's effect.

Answer

To determine which statement is not correct among the given options, we will analyze each statement one by one.

### Step 1: Analyze Statement A
**Statement A:** "Formation of oxyhemoglobin is a process of oxidation."

- **Explanation:** Oxyhemoglobin is formed when oxygen binds to hemoglobin in the blood. This process is not classified as oxidation, which typically involves the loss of electrons or the addition of oxygen in a combustion-like reaction. Therefore, this statement is **incorrect**.

### Step 2: Analyze Statement B
**Statement B:** "Every 100 ml of oxygenated blood can deliver around 5 ml of oxygen to tissues under physiological conditions."

- **Explanation:** This statement is true. Under normal physiological conditions, 100 ml of oxygenated blood can indeed deliver approximately 5 ml of oxygen to the tissues.

### Step 3: Analyze Statement C
**Statement C:** "Dissociation curve is a curve between percentage saturation of hemoglobin with oxygen and partial pressure of oxygen."

- **Explanation:** This statement is also true. The dissociation curve illustrates the relationship between the percentage saturation of hemoglobin with oxygen and the partial pressure of oxygen, which is a standard representation in respiratory physiology.

### Step 4: Analyze Statement D
**Statement D:** "High concentration of carbon dioxide activates dissociation of oxyhemoglobin, known as Bohr's effect."

- **Explanation:** This statement is true as well. The Bohr effect describes how an increase in carbon dioxide concentration leads to a decrease in pH, which promotes the release of oxygen from hemoglobin, facilitating oxygen delivery to tissues.

### Conclusion
After analyzing all statements, we find that:
- **Statement A** is the only incorrect statement. Therefore, the answer to the question is **Statement A**.

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