📊 Chemistry
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.

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

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