<prompt> Inhalational anesthetic with highest respiratory irritation is:-DesfluraneNitrous oxideSevofluraneHalothane  <response>: Max respiratory irritation:- Desflurane MAC of Nitrous Oxide: 104 Smooth inducing agent, preferred in children : Sevoflurane Halothane:- Sensitize hea to arrythmogenic agent Eg:- Ardenaline. Therefore contraindicated in pheochromocytoma 