7.4
6.2
9
7.5 - 8.0
Answer is Wrong!
Answer is Right!
The correct answer is A. 7.4.
The pH of human blood is slightly alkaline, with a normal range of 7.35 to 7.45. This means that the blood is slightly basic, with a higher concentration of hydrogen ions than acids. The pH of blood is important for maintaining homeostasis, or a stable internal environment. If the pH of blood falls too low or too high, it can lead to serious health problems, including coma and death.
Option B is incorrect because the pH of blood is not 6.2. Option C is incorrect because the pH of blood is not 9. Option D is incorrect because the pH of blood is not between 7.5 and 8.0.