Pin index system for oxygen
High-Yield Explanation
Ans: (b) 2,5Ref: Miller's Anaesthesia 7th ed. / 675* Pin index for oxygen is 2, 5.* Cylinder of oxygen is black body with white shoulder.GasColor CodePin index positionBodyShoulderOxygenBlackWhite2,5Nitrous oxideBlueBlue3, 5CO2GrayGray1,6HeliumBrownBrown2,5AirGreyWhite/black quartered1,5