Question

Which type of mixture is of oxygen or nitrogen?

A) homogeneous mixture.
B) heterogeneous mixture.​

Answer 1

Hence, air is made up of various gases such as 78.09 Nitrogen, 20.95 oxygen, 0.93 argon,0.04 carbon dioxide and water vapors. But they all are in single phase. Therefore, the answer is Homogenous mixture.

Answer 2

Answer:

Homogeneous mixture

Air is a mixture of 21% oxygen, 78% nitrogen, and approximately 1% other trace gases, primarily argon; to simplify calculations this last 1% is usually treated as if it were nitrogen.