Multiple choice

What is the chemical name of laughing gas?

  1. Sulphur dioxide

  2. Carbon monoxide

  3. Nitric oxide

  4. Nitrous oxide

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nitrous oxide (N2O) is commonly known as laughing gas due to its euphoric effects when inhaled. It was discovered in 1772 by Joseph Priestley and has been used as an anesthetic and analgesic in medical and dental procedures. The chemical formula N2O confirms that nitrous oxide is the correct answer.

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