NEET · BiologyEasy
What is the approximate partial pressure of oxygen in the atmospheric air, denoted as ?
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: B —
Solution
- Atmospheric air contains approximately 21 percent oxygen.
- The total atmospheric pressure is 760 mmHg.
- The partial pressure is calculated as .
- This equals approximately .
- Hence the answer is (B).
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