`p^(H)` of blood in arteries and veins is

Options

A. More in veins and less in arteries
B. More in arteries and less in veins
C. Same
D. Not definite

Answer

To determine the pH of blood in arteries and veins, we can follow these steps:

### Step 1: Understand pH
- pH is a measure of how acidic or basic a solution is. A pH of 7 is considered neutral, below 7 is acidic, and above 7 is basic.

### Step 2: Know the normal pH range of blood
- The normal pH range of blood is between 7.35 and 7.45, indicating that blood is slightly basic in nature.

### Step 3: Compare arterial and venous blood
- Arterial blood, which is oxygenated, has a higher pH compared to venous blood, which is deoxygenated. This is because venous blood contains higher levels of carbon dioxide (CO2), which can form carbonic acid in the blood, lowering the pH.

### Step 4: Conclusion
- Therefore, the pH of blood in arteries is higher (more basic) than in veins, which means that arterial blood has a pH that is more than that of venous blood.

### Final Answer
- The correct option is **B: more in arteries and less in veins**.

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