The rarest gas in air is...?

Latest MCQs

Comments

Explanation:

Xenon is the rarest gas in the Earth's atmosphere, making up about 0.000009% (9 parts per million).

Neon is also a rare gas, but it is more abundant than xenon, making up about 0.0018% of the atmosphere.

Source: This question is taken from the PROVINCIAL MANAGEMENT SERVICE, ETC. BS-17(2016)

The rarest gas in air is...? Mcqs