Which statement about nerve agents is false?

Which statement about nerve agents is false?

• A. They are examples including sarin, soman, and VX
• B. They vaporize easily due to high vapor pressure
• C. They were designed with only one purpose: to kill people
• D. They are a class of chemical warfare agents

Answer: (B)

The idea being tested is how volatility and vapor pressure apply to nerve agents. Nerve agents are a class of chemical warfare agents that include sarin, soman, and VX, and they work by inhibiting acetylcholinesterase, leading to a dangerous buildup of acetylcholine in the nervous system. The problematic statement says they vaporize easily due to high vapor pressure. That isn’t correct across the board. Volatility varies among nerve agents: one of them, sarin, is highly volatile and can form a gas quickly, making inhalation a common exposure route. But another, VX, has a very low vapor pressure and is a persistent liquid that doesn’t readily form a gas at room temperature; exposure to VX is more likely through skin contact or contaminated surfaces. So you can’t generalize that all nerve agents vaporize easily just because some do; the claim is false because vapor pressure and volatility are not uniformly high for all nerve agents. The other statements are accurate: these agents are examples like sarin, soman, and VX; they are a class of chemical warfare agents; and they were designed as weapons with the intent to harm or kill.

The idea being tested is how volatility and vapor pressure apply to nerve agents. Nerve agents are a class of chemical warfare agents that include sarin, soman, and VX, and they work by inhibiting acetylcholinesterase, leading to a dangerous buildup of acetylcholine in the nervous system. The problematic statement says they vaporize easily due to high vapor pressure. That isn’t correct across the board. Volatility varies among nerve agents: one of them, sarin, is highly volatile and can form a gas quickly, making inhalation a common exposure route. But another, VX, has a very low vapor pressure and is a persistent liquid that doesn’t readily form a gas at room temperature; exposure to VX is more likely through skin contact or contaminated surfaces. So you can’t generalize that all nerve agents vaporize easily just because some do; the claim is false because vapor pressure and volatility are not uniformly high for all nerve agents. The other statements are accurate: these agents are examples like sarin, soman, and VX; they are a class of chemical warfare agents; and they were designed as weapons with the intent to harm or kill.