PIN index of nitrous oxide is?
High-Yield Explanation
ANSWER: (C) 3-5REF: Morgan 4th ed p, 20PIN INDEX Air1-5NITROUS OXIDEOxygen2-5* Stored in blue cylinder* Pin index: 3-5* Liquid gas* 745 psi pressure* 1590 lit is the volumeNitrous oxide3-5Carbon di oxide1-6Helox2-4Entonox7