give one method oh preparation of nitrous oxide why it is called laughing gas - Chemistry - The p-Block Elements

Question

give one method oh preparation of nitrous oxide why it is called
laughing gas?

Suhail · Accepted Answer

Decomposition of Ammonium nitrate on heating,
​NH4NO3 (s) → 2 H2O (g) + N2O (g)

Nitrous oxide is commonly used by dentists as a mild sedative agent
It causes euphoria in the patient and some giggle and laugh Thus,
the nickname laughing gas

give one method oh preparation of nitrous oxide . why it is called laughing gas?