Question
What is the pH range of fluid marked by a red arrow in the picture below ?

A. 5.5 – 6.0.
B. 6.0 – 6.5.
C. 6.5 – 7.0.
D. 7.0 – 7.5.
Show Answer
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A. 5.5 – 6.0.
B. 6.0 – 6.5.
C. 6.5 – 7.0.
D. 7.0 – 7.5.