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KCET2008Chemistryp Block Elements (Group 15, 16, 17 & 18)

Helium is used in balloons in place of hydrogen because it is

Options

  1. Aincombustible
  2. Blighter than hydrogen
  3. Cradioactive
  4. Dmore abundant than hyrogen

Correct answer

A. incombustible

Step-by-step solution

Helium (He) is a non-flammable (incombustible) gas and its lifting power is 93 % as compared to flammable hydrogen gas, due to these reasons it is used in filling balloons and other lighter air-crafts.

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