Machine-translated by Google. Questions are authored in English.
Top

Discussion

What is laughing gas?

  • A.Nitrous oxide
  • B.Carbon monoxide
  • C.Sulphur dioxide
  • D.Hydrogen peroxide

Answer: A

Laughing gas is nitrous oxide, N2O.

Humphry Davy noticed its euphoric effect in 1799 and gave it the name; it has been used as a dental and surgical anaesthetic since the 1840s. It is also a potent greenhouse gas.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.