Home PYQs UPPSC UPPSC MCQs Prelims 2023 (GS Paper I)

Question

Which of the following is known as laughing gas?

  1. Ammonia
  2. Nitrous Oxide
  3. Carbon Monoxide
  4. Chlorofluro Carbon

Answer:

Option B: Nitrous Oxide

Detailed Solution:

The correct answer is “Nitrous Oxide”.

Nitrous Oxide (N₂O) is commonly known as laughing gas because it has anesthetic properties and can cause feelings of euphoria or laughter when inhaled. It is often used in dentistry and as a mild anesthetic.