Which of the following is known as laughing gas?
A
CO2
B
N2O
C
NO2
D
B2O
Correct Answer: N2O
N2O is also known as laughing gas. It is also used as a mild anesthetic. It is used in dentistry and as a carrier gas during general anesthesia. It is administered via inhalation, absorbed through diffusion and removed via the normal respiration process.