General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 52)
52.
Balloons are filled with
Discussion:
14 comments Page 2 of 2.
Sriram said:
1 decade ago
Perhaps the lightest and inert gas. Hydrogen is more lighter but readily flamable. We want the baloon to raise but not to burst and burn. So choice is helium.
Neorge said:
1 decade ago
To make balloon lighter, the gas inside should be lighter than air. As nitrogen is available 78% in the air, but it is not lighter. In case of oxygen, it is highly inflammable, so it cannot be used in balloon as safety precautions. Helium is the lightest gas in the atmosphere.
Ramya said:
1 decade ago
Since it is lighter than air.
UDAYA KUMAR.H.P said:
1 decade ago
Because of its low density.
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