General Knowledge - Basic General Knowledge - Discussion


The exhaled air contains

[A]. carbon dioxide only
[B]. a mixture which has more carbon dioxide than oxygen
[C]. a mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
[D]. a mixture of carbon dioxide and nitrogen

Answer: Option C


No answer description available for this question.

Subham said: (Jan 30, 2011)  
I think it only contain carbondioxide.

Meenakshi said: (Oct 15, 2011)  
I also think that it contains only carbon dioxide.

Clyde Lopez said: (Oct 9, 2012)  
Inhaled air has the same composition as normal air, it contains:

78% nitrogen
21% oxygen
1% inert gas such as argon
0.04% carbon dioxide
little water vapour

Exhaled air contains less oxygen and more carbon dioxide, it is also saturated with water vapour. Exhaled air contains:

78% nitrogen
17% oxygen
1% inert gas such as argon
4% carbon dioxide
saturated with water vapour

The Composition of Nitrogen remains the same for both Inhaled air and Exhaled air.

Nikhil Sharma said: (Aug 30, 2013)  
This expired air typically composed of:

78% nitrogen.
13.6% - 16% Oxygen.
4% - 5.3% Carbon dioxide.
1% Argon and other gases.

Anish N said: (Dec 10, 2013)  
Both inhale & exhale the percentage of nitrogen being same.

Anupam Srivastava said: (Apr 4, 2019)  
I think it contains carbon dioxide and nitrogen.

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