The 'laughing gas' is__________________?
Correct answer: A. Nitrous oxide
- A. Nitrous oxide
- B. Nitric oxide
- C. Nitrogen trioxide
- D. Nitrogen pentoxide
Explanation
Nitrous oxide, N₂O, is called laughing gas because inhalation can produce euphoria and laughter. Nitric oxide and the nitrogen oxides listed are different compounds.
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