Nitrous oxide is commonly used as a medical gas. Which gas is this?

Nitrous oxide is commonly used as a medical gas. Which gas is this?

• A. Nitrous oxide
• B. Oxygen
• C. Helium
• D. Neon

Answer: (A)

Nitrous oxide is the gas used in medicine for anesthesia and pain relief, commonly known as laughing gas. It’s a colorless gas with a sweet odor, and when inhaled it provides rapid relaxation and analgesia, which is why it’s widely used in dentistry and short medical procedures. In clinical use it’s typically mixed with oxygen to ensure the patient remains well-oxygenated and to control the depth of sedation. The other gases listed have different primary roles: oxygen is essential for breathing but isn’t the anesthetic agent itself, helium is mainly used to alter gas density for specific medical or diagnostic purposes, and neon is largely used for lighting and certain niche applications. So the gas described is nitrous oxide.

Nitrous oxide is the gas used in medicine for anesthesia and pain relief, commonly known as laughing gas. It’s a colorless gas with a sweet odor, and when inhaled it provides rapid relaxation and analgesia, which is why it’s widely used in dentistry and short medical procedures. In clinical use it’s typically mixed with oxygen to ensure the patient remains well-oxygenated and to control the depth of sedation. The other gases listed have different primary roles: oxygen is essential for breathing but isn’t the anesthetic agent itself, helium is mainly used to alter gas density for specific medical or diagnostic purposes, and neon is largely used for lighting and certain niche applications. So the gas described is nitrous oxide.