Final answer:
Halothane will result in the greatest potentiation of nondepolarizing muscle relaxants.
Step-by-step explanation:
The volatile anesthetic that will result in the greatest potentiation of nondepolarizing muscle relaxants is halothane.
Halothane is one of the older volatile anesthetics that have been used but are less popular today. It is a fluorine-containing compound that has been replaced by newer inhalant anesthetics like desflurane, isoflurane, and sevoflurane, which are considered safer and have fewer side effects.
While all of the volatile anesthetics can potentiate nondepolarizing muscle relaxants to some extent, halothane is known to have the strongest potentiation effect.