Which of the following is represented in the highest percentage by volume in dry air? A. Oxygen B. Carbon dioxide C. Nitrogen D. Hydrogen

Question

asked May 14, 2017 135k views

1 Answer

Samrat Dutta · Answer 1 · 2017-05-20T19:35:57+0000

Answer is: C. nitrogen.

Together, nitrogen (N₂) and oxygen (O₂) by volume account for 99.03% volume of the gases composing the dry air in the lower atmosphere.

Volume of nitrogen in air is 78.08%.

Volume of oxygen in air is 20.95%.

Together: 78.08% + 20.95% = 99.03%.

This gases can be separated by fractional distillation of liquefied air .