Q. Which is the lightest gas?

  • (A) Helium
  • (B) Hydrogen
  • (C) Nitrogen
  • (D) Oxygen
✅ Correct Answer: (B) Hydrogen
Explanation: Hydrogen is the lightest gas.

Published by Tina Singh ⭐ 14.41K Points at 23-Jul-2026 06:38 am in General Awareness

Explanation by: Tina Singh
Hydrogen is the lightest gas.

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