Question

What is the pH value of blood?
7.9
7.7
7.4
7.1
choose the correct answer ​

Answer 1

The pH scale, ranges from 0 (strongly acidic) to 14 (strongly basic or alkaline). A pH of 7.0, in the middle of this scale, is neutral. Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually the body maintains the pH of blood close to 7.40.

Answer 2

Answer:

7.4

Explanation:

Usually body maintains value of blood pH between 7.35 to 7.45.

As the most closest choice given is 7.4 so we will go with this choice.Other values are not closer to the actual value as 7.4 is close to actual value.