PIN number of oxygen is: (A) 2,5, (B) 3,5, (C) 2,6, (D) 3,6
Answer is A. Ans: a (2,5 ) Ref: Ajay Yadov, 2nded, p. 22Pin index for gasesOxygen-2,5 Entonox(50%02 +50%N2O)-7Nitrous oxide-3,5 Carbondioxide(<7.5%)-2,6Cyclopropane-3,6 Carbondioxide(> 7.5%)-1,6Air-1,5 Nitrogen-1,4