Which of the following is the pOH range of gastric acid?
A. 1.5 to 3.5
B. 10.5 to 12.5
C. 1.5 to 2.5
D. 6.5 to 7.5
To determine the pOH range of gastric acid, we need to understand what gastric acid is and its pH range.
Gastric acid is a digestive fluid that is produced in the stomach. It is highly acidic and plays a crucial role in the breakdown of food. The pH scale is used to measure the acidity or alkalinity of a solution, ranging from 0 to 14. A pH of 7 is considered neutral, below 7 is acidic, and above 7 is basic or alkaline.
Now, let's evaluate the given options:
A. 1.5 to 3.5: This range falls within the acidic range and is a plausible pH range for gastric acid.
B. 10.5 to 12.5: This range falls within the basic or alkaline range, which is not consistent with the acidity of gastric acid.
C. 1.5 to 2.5: This range is similar to option A (1.5 to 3.5), and both fall within the acidic range. This is another plausible option.
D. 6.5 to 7.5: This range is close to 7, which is neutral on the pH scale. Gastric acid is much more acidic than this, so option D is unlikely.
Based on this analysis, the possible correct answers are options A (1.5 to 3.5) and C (1.5 to 2.5). Both fall within the acidic range, which is characteristic of gastric acid.