MCQ
Partial pressure of $O _{2}$ and $CO _{2}$ in atmospheric air as compared to those in alveolar air is
| Alveolar Air | Atmospheric Air | |
| $p O _{2}$ | $ X$ | $ Y$ |
| $pCO _{2}$ | $A$ | $B$ |
- A$X>Y \& A>B$
- B$X < Y \& A < B$
- C$X > Y \& A < B$
- ✓$X < Y \& A > B$
