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Helium is preferred to hydrogen in air b...

Helium is preferred to hydrogen in air balloons because it

A

is cheaper

B

is less dense

C

has greater lifting power

D

does not form an explosive mixture with air

Text Solution

Verified by Experts

The correct Answer is:
D
Hydrogen combines with oxygen with explosive force in the presence of a spark.Helium is an inert gas that will not burn or explode, so is much safer to use in balloons instead of hydrogen.
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