General Knowledge - General Science - Discussion


Balloons are filled with

[A]. nitrogen
[B]. helium
[C]. oxygen
[D]. argon

Answer: Option B


No answer description available for this question.

Udaya Kumar.H.P said: (Feb 28, 2011)  
Because of its low density.

Ramya said: (Mar 4, 2011)  
Since it is lighter than air.

Neorge said: (Apr 3, 2011)  
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.

Sriram said: (Nov 1, 2011)  
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.

Kriti said: (Jul 5, 2012)  
Well, helium is a lighter and inflammable (non combustible) gas, hence used in filling the air balloons.

Question said: (Feb 17, 2014)  
This question should say "Floating balloons are filled with", if its just "balloons" it can be filled with anything.

Apr said: (Jul 9, 2014)  
ya and also we don't want our kids crying in case the balloon bursts or is set on fire party will stop there itself only.

So helium is a safer option.
Its also an inert and a noble gas.

It is odourless, colourless, monatomic gas with very low chemical reactivity.

The six noble gases that occur naturally are:

Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn).

Tani said: (May 26, 2016)  
Helium is lighter than air and it's used to make the balloon float.

Hari said: (Jun 9, 2016)  
Because helium never gets fire and it can fly easily.

Sreevind Ks said: (Aug 5, 2016)  
"Balloons cane be filled with any Air".

Here, You want to specify it as "Floating Balloons".

Saksham said: (Oct 19, 2016)  
Helium is the highest gas.

Lalaji said: (May 5, 2017)  
It is lighter than air and low density, so it always tries to be in the upper atmosphere.

Basant said: (Aug 14, 2017)  
In IMD, Hydrogen gas is used to fill a balloon. The He may be for other purposes. Here, the purpose is not mentioned.

Abinaya said: (Sep 18, 2017)  
Helium, due to its non inflammability and lightness, it s used for filling ballons.

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