What chemical was being transported in the pipeline in the scenario?

What chemical was being transported in the pipeline in the scenario?

• A. Benzene
• B. Ethylbenzene
• C. Toluene
• D. Cyclohexane

Answer: (A)

In this kind of scenario, identify clues that match a chemical known for being a simple, volatile aromatic hydrocarbon that’s commonly transported in pipelines. Benzene fits that profile: it’s a colorless liquid with a distinct, sweet odor, highly volatile, and widely used in gasoline blends and industrial solvents. Its volatility means vapors can quickly form a flammable plume, and its toxic, carcinogenic nature makes safety considerations (evacuation radii, respiratory protection, exposure limits) a priority in a release situation. Compared with the other options, those are either non-aromatic or have different properties (higher boiling points, lower volatility, different hazards), so the clues in the scenario align most closely with benzene.

In this kind of scenario, identify clues that match a chemical known for being a simple, volatile aromatic hydrocarbon that’s commonly transported in pipelines. Benzene fits that profile: it’s a colorless liquid with a distinct, sweet odor, highly volatile, and widely used in gasoline blends and industrial solvents. Its volatility means vapors can quickly form a flammable plume, and its toxic, carcinogenic nature makes safety considerations (evacuation radii, respiratory protection, exposure limits) a priority in a release situation.

Compared with the other options, those are either non-aromatic or have different properties (higher boiling points, lower volatility, different hazards), so the clues in the scenario align most closely with benzene.