1.

Which of the following gases exist more abundantly in nature than the others

Answer»

HELIUM
Neon
ARGON
Krypton

Solution :`{:("Gas",,"(Abundance in air by volume (ppm))"),("Helium",,"5.2"),("Neon",,"18.2"),("Argon",,"93.4"),("Krypton",,"1.1"),("XENONE",,"0.09"):}`


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