Helium is used in observation of ballons becaus... - JAMB Chemistry 2020 Question
Helium is used in observation of ballons because it is?
A
Light and combustible
B
light and non-combustible
C
heavy and combustible
D
heavy and non-combustible
correct option: b
Helium floats because it is buoyant;
The molecules in Helium are lighter than the nitrogen and oxygen molecules of our atmosphere and so they rise above it
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