Q. Which gas is known as laughing gas?

  • (A) Carbon monoxide
  • (B) Nitrous oxide
  • (C) Sulphur dioxide
  • (D) Methane
✅ Correct Answer: (B) Nitrous oxide
Explanation: Nitrous oxide (N₂O) is called laughing gas because of its euphoric effects when inhaled.

Published by Sikhar Chaudhary ⭐ 5.88K Points at 06-Oct-2025 06:45 am in Chemistry

Explanation by: Sikhar Chaudhary
Nitrous oxide (N₂O) is called laughing gas because of its euphoric effects when inhaled.

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