Q. What is the pH of human saliva?
A) 7.0
B) 7.5
C) 6.8
D) 6.0
Explanation
pH value of saliva is 6.8. Hence, it is slightly acidic in medium. It is composed of water and salts of sodium, potassium, chlorides and bicarbonates. Saliva also contains an antibacterial agent, lysozyme
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.