Question

What is the \% of carbon dioxide in the inhaled and exhaled air?

• A. 0.03\% and 4.4\% respectively
• B. 0.04\% and 3.5\% respectively
• C. 0.04\% and 5\% respectively
• D. 0.03\% and 3.8\% respectively

Hint:

Inhaled air contains very little carbon dioxide, while exhaled air has much more due to respiration.

Answer 1

The Correct Option is A

Step 1: Inhaled Air.
In atmospheric air, the concentration of carbon dioxide is approximately 0.03\%. Step 2: Exhaled Air.
During respiration, carbon dioxide concentration increases in exhaled air and reaches around 4.4\%. Step 3: Conclusion.
Hence, inhaled air contains 0.03\% \(CO_2\) and exhaled air contains 4.4\%.