62. Which of the following is used as anesthetic ? A.NH3 B.N2O C.NO2 D.N2O
Answer: Option B Solution: Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
