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Helium gas is filled in balloons because

A) its atomic number is 2
B) it is lighter than air
C) it is one of the constituents of water
D) it is a noble gas

Correct Answer:


B) it is lighter than air

Part of solved TNPSC Question Paper-2000 questions and answers : Exams >> TNPSC >> TNPSC Question Paper-2000

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