Chemistryeasy · Past Paper
Which element is used to fill weather balloons?
ANitrogen
BOxygen
CHelium
DArgon
✓ Correct Answer: C — Helium
Helium is used because it is very light and, unlike hydrogen, it is not flammable.
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✓ Correct Answer: C — Helium
Helium is used because it is very light and, unlike hydrogen, it is not flammable.
Share this question