everyday science MCQ #5654

What is laughing gas called?

everyday science MCQ #5654

  1. Question 1

    Q1. What is laughing gas called?

    • A) Ferrous chloride
    • B) Sulfur dioxide
    • C) Ferric hydroxide
    • D) Nitrous oxide

    Answer: Nitrous oxide

    Explanation: Nitrous oxide (N₂O) is commonly called laughing gas because inhaling it produces a brief euphoric effect and sometimes uncontrollable laughter; it is used as an anaesthetic in dentistry.