Explanation
The correct answer is B: Nitrous Oxide.
Laughing gas is a common name for nitrous oxide (N2O), which is a colorless and non-flammable gas. Nitrous oxide is composed of two nitrogen atoms and one oxygen atom and has a slightly sweet taste and odor. It is commonly used as a mild anesthetic in dentistry and surgery, as well as a recreational drug due to its euphoric and dissociative effects.
Nitrogen (A) is a chemical element with the symbol N and atomic number 7. It is a colorless and odorless gas that makes up about 78% of the Earth's atmosphere.
Nitric oxide (C) is a colorless gas with the chemical formula NO. It is an important signaling molecule in the body, playing a role in blood vessel dilation and regulating immune function.
Nitric acid (D) is a highly corrosive and toxic acid with the chemical formula HNO3. It is used in the production of fertilizers, dyes, and explosives, among other applications.
