Helium gas is filled in balloons because Options: A . &nbspIts atomic number is 2 B . &nbspIt is lighter than air C . &nbspIt is one of the constitutents of water D . &nbspIt is a noble gas

Helium gas is filled in balloons because

Question

Helium gas is filled in balloons because

Options:

A . Its atomic number is 2

B . It is lighter than air

C . It is one of the constitutents of water

D . It is a noble gas

Answer: Option B

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