WBCS.LIVE practice question

Which gas is popularly known as 'Laughing Gas'?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Nitrogen dioxide
  2. Nitric oxide
  3. Nitrous oxide
  4. Nitrogen pentoxide

Correct answer and explanation

Correct answer: Nitrous oxide

Explanation: āœ… Correct Answer: C) Nitrous oxide šŸ“š Explanation: Nitrous oxide ($N_2O$) is a colorless gas that produces a mild euphoric effect or laughter when inhaled. It is commonly used in dentistry and minor surgeries as a safe anesthetic and analgesic. Beyond medical use, it also acts as an oxidizer in rocket motors and high-performance racing engines.