Question : The inert gas used as beacon light is
Option 1: krypton
Option 2: Argon
Option 3: Helium
Option 4: Neon
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Correct Answer: Neon
Solution : The correct answer is Neon.
Neon is placed in the Group 18 of the periodic table. When electricity is passed through it, it produces a bright red and orange light and because of this feature, it is used as beacon lights, incandescent bulbs, fluorescent tubes etc. It is an inert gas because it does not react with the filament of the bulbs making it long-lasting.
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