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SSC CGL Tier 1 :: GA Test 95
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1 .
The inert gas used as beacon light is
[ A ]    Kr
[ B ]    Ar
[ C ]    He
[ D ]    Ne right
Answer : Option D
Explanation :
Neon light is visible from very long distances even in heavy fog during winter season.

Neon (and other elements of group 18) is an inert or noble gas because they are highly uncreative.
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