What is the pH value of human blood which is basic in nature?

7.4

The correct answer is option (3) 7.4.

The pH value of human blood, which is slightly basic in nature, is 7.4. The pH of human blood typically ranges between 7.35 and 7.45, with an average value of approximately 7.4. This slightly basic pH is essential for maintaining the proper function of biological processes within the body. Any significant deviation from this pH range can lead to health complications.