8.1
8.4
7.4
9.2
Answer is Right!
Answer is Wrong!
The correct answer is C. 7.4.
The pH scale is a logarithmic scale that ranges from 0 to 14, with 7 being neutral. A pH below 7 is acidic, while a pH above 7 is alkaline. Human blood has a pH of 7.4, which is slightly alkaline. This is important because it helps to keep the body’s cells functioning properly. If the pH of blood changes too much, it can lead to serious health problems.
Option A is incorrect because the pH of blood is not 8.1. Option B is incorrect because the pH of blood is not 8.4. Option D is incorrect because the pH of blood is not 9.2.