Question

Which gas has the highest partial pressure in atmosphere?

• A. $CO_2$
• B. $H_2 O$
• C. $O_2$
• D. $N_2$

Answer 1

Answer: (D)

$N_2$

Answer 2

Air contains $78 \%$ Nitrogen. So, it contributes more number of moles to partial pressure than any other gas in the atmosphere. So, it has the highest partial pressure.