What is laughing gas?

Correct option is C

Laughing gas, chemically known as Nitrous oxide (N₂O), is a colorless, non-flammable gas commonly used for its anesthetic and analgesic effects. It is often used in dentistry and surgeries to provide mild sedation. The gas induces euphoria, leading to its nickname "laughing gas."

Important Key Points:

1. Discovered by Joseph Priestley in 1772.
2. Commonly used as a sedative in medical and dental procedures.
3. Found application as a propellant in food products like whipped cream.
4. Excessive exposure may lead to oxygen deprivation.
5. It is also a significant greenhouse gas.
6. Inappropriate recreational use of nitrous oxide is dangerous.