Multiple choice general knowledge Which of the following is a Nerve Agent? Mustard Gas Anthrax Hydrogen cyanide Sarin Reveal answer Fill a bubble to check yourself D Correct answer Explanation Sarin is a potent nerve agent that disrupts the nervous system by inhibiting acetylcholinesterase. Mustard Gas is a blister agent (vesicant), Anthrax is a biological agent (bacterium), and Hydrogen Cyanide is a blood agent - none are nerve agents.