<prompt> Least MAC is of which inhalational agent-XenonHalothaneSevofluraneIsoflurane  <response>: Ans. is b i.e., Halothane Ref: Ajay Yadav 4the p. 591 Agent MAC Ether 1.9 Halothane 0.75 Enflurane 1.68 Isoflurane Desflurane 6.0 Sevoflurane 2.0 Nitrous oxide 105 Xenon has MAC of 71 -- Morgan Methoxyflurone MAC 0.16 Trilene 0.2 Halothane 0.74 Chloroform 0.8 Isoflurane 1.15 Enflurane 1.68 Ether 1.92 Sevoflurane 2.0 Desflurane 6.0 Cyclopropane 9.2 N20 104. 