Get Started
670

Q:

Filling helium in balloons is considered more useful than hydrogen, because?

  • 1
    it is cheap
  • 2
    less heavy
  • 3
    more flying ability
  • 4
    it does not form explosive mixture with air
  • Show Answer
  • Workspace

Answer : 4. "it does not form explosive mixture with air"

The Most Comprehensive Exam Preparation Platform

Get the Examsbook Prep App Today