Which one of these gases is "lighter-than-air" A) Cl₂ B) SO₂ C) PH₃ D) NO₂ E) Ne

Name: Which one of these gases is "lighter-than-air" A) Cl 2 B) SO 2 C) PH 3 D) NO 2 E) Ne
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The gas Ne (neon) is lighter-than-air, as it has a density of 0.899 g/L at standard conditions, which is less than the density of air (approximately 1.2 g/L). The other options are not lighter-than-air gases.

Which One of These Gases Is "Lighter-Than-Air