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Science and Technology - General Knowledge Questions
Which one is a "noble gas"
A)
Oxygen
B)
Helium
C)
Carbon dioxide
D)
Hydrogen

Correct Answer :   Helium

Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).

Published On : June 11, 2021
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