Question : Which of the following is not a noble gas?
Option 1: Hydrogen
Option 2: Helium
Option 3: Neon
Option 4: Argon
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Correct Answer: Hydrogen
Solution : The correct answer is Hydrogen.
Hydrogen is not a noble gas. Nobel gases are chemically inert gases which are placed in Group 18 in the periodic table. There are 6 noble gases which are found in nature- helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn),
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