Question:
Which of the following formula represents laughing gas?
Which of the following formula represents laughing gas?
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Laughing gas refers specifically to nitrous oxide, $\mathrm{N_2O}$, not higher oxides of nitrogen.
Updated On: Feb 2, 2026
- $\mathrm{N_2O}$
- $\mathrm{N_2O_5}$
- $\mathrm{N_2O_4}$
- $\mathrm{N_2O_3}$
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The Correct Option is A
Solution and Explanation
Step 1: Understanding laughing gas.
Laughing gas is the common name for nitrous oxide, which is widely used as an anesthetic and analgesic in medical and dental procedures.
Step 2: Chemical identity.
Nitrous oxide has the molecular formula $\mathrm{N_2O}$ and is distinct from other nitrogen oxides like $\mathrm{N_2O_3}$, $\mathrm{N_2O_4}$, and $\mathrm{N_2O_5}$.
Step 3: Conclusion.
Hence, the correct answer is (A) $\mathrm{N_2O$}.
Laughing gas is the common name for nitrous oxide, which is widely used as an anesthetic and analgesic in medical and dental procedures.
Step 2: Chemical identity.
Nitrous oxide has the molecular formula $\mathrm{N_2O}$ and is distinct from other nitrogen oxides like $\mathrm{N_2O_3}$, $\mathrm{N_2O_4}$, and $\mathrm{N_2O_5}$.
Step 3: Conclusion.
Hence, the correct answer is (A) $\mathrm{N_2O$}.
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