Tick which One is Laughing Gas :

  1.  Carbon dioxide
  2.  Sulphur dioxide
  3. Nitrogen dioxide
  4.  Nitrous oxide
Anurag Mishra Professor Asked on 22nd September 2015 in Chemistry.
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    Answer: (4) Nitrous Oxide

    RE: Tick which One is Laughing Gas :


    Nitrous oxide is known as laughing gas.  In 1772, It was first discovered by Joseph priestley. It was finally made by Colton in 1863. The chemical formula of nitrous oxide is N2O. It is consist of one oxygen atom and two nitrogrn atoms. It is a colorless, odorless gas. 

    It is used for pain relief and used by dentist in the medical professionals. 

    Anurag Mishra Professor Answered on 22nd September 2015.
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