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Study of the First Element - Hydrogen — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYStudy of the First Element - Hydrogen1 Mark
MCQ
Helium is preferred to hydrogen for filling balloons because it is:
  • A
    lighter than air
  • B
    almost as light as hydrogen
  • ✓
    non$-$combustible
  • D
    inflammable
✓

Answer

Correct option: C.
non$-$combustible

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