McqMate
Q. |
Which of the following is an Inert Gas? |
A. | Hydrogen |
B. | Nitrogen |
C. | Oxygen |
D. | Argon |
Answer» D. Argon | |
Explanation: Argon is an inert gas (noble gas) that is placed in Group 18 of the periodic table. It is the most abundant noble gas in Earth's crust, comprising 20.00015% of the crust. Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) are other noble gases that occur naturally. |
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