Which of the following is true regarding vapors from liquids?

• A. They cannot be flammable
• B. They behave like solid particles
• C. They may be flammable, corrosive, or toxic
• D. They are safe to inhale

Answer: (C)

Vapors from liquids can indeed be flammable, corrosive, or toxic, which is why this option is correct. When a liquid evaporates, it can release vapors that may mix with air. Depending on the chemical composition of the liquid, these vapors can pose significant hazards. For instance, flammable vapors can ignite if they come into contact with an ignition source, while corrosive vapors can damage respiratory passages or skin upon exposure. Additionally, many vapors may be toxic and could lead to serious health risks if inhaled or contacted. Understanding the potential properties of vapors is crucial for safe handling and response in hazardous situations.

The other options do not accurately reflect the properties of vapors. They can definitely be flammable, which rules out the first choice. Vapors do not behave like solid particles, as they are gaseous and exhibit different properties compared to solids; this makes the second option incorrect. Lastly, vapors are generally not safe to inhale, as many can cause health hazards, making the final statement inaccurate.