Which of the following noble gases is used in filling balloons?

Kingsley Thompson January 21, 2026

Which of the following noble gases is used in filling balloons?

A. Kr

B. Xe

C. He

D. Ar

The correct answer is:

C. He (Helium)

Explanation:
Helium is used for filling balloons because it is very light, inert, and non-flammable, making it safe and suitable for this purpose.

PQN: 27

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Kingsley Thompson

Posted by: Kingsley Thompson

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