Multiple choice

In man, the pH of saliva varies from

  1. 8.0 to 10.0

  2. 7.5 to 8.0

  3. 7.5 to 9.0

  4. 6.7 to 7.2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Human saliva is slightly acidic to neutral, with pH typically ranging from 6.2 to 7.6. The range of 6.7 to 7.2 represents the normal physiological variation in healthy individuals. Options A, B, and C are incorrect because they indicate alkaline ranges that are not found in normal human saliva.

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