The correct answer is D. Nitrous oxide.
Nitrous oxide is a chemical compound with the formula N2O. It is a colorless, odorless gas that is used as an anesthetic and a propellant. It is also known as laughing gas because it can cause people to laugh when they inhale it.
Nitric oxide is a gas that is produced by the body. It is involved in many important bodily functions, including the regulation of blood pressure and the immune system.
Nitrogen dioxide is a gas
that is produced when nitric oxide reacts with oxygen. It is a brown gas that is a major component of air pollution.Nitrogen pentoxide is a solid that is produced when nitrogen dioxide reacts with water. It is a white solid that is used in the manufacture of explosives.
In conclusion, the chemical name of ‘laughing gas’ is nitrous oxide.