American Chemical Society (ACS) Laboratory Safety Test 2025 – 400 Free Practice Questions to Pass the Exam

The compound with a boiling point of 200 degrees C generally poses more safety concerns than the one with a boiling point of 100 degrees C. This is primarily due to the temperature at which each compound can vaporize. Compounds with higher boiling points often indicate that they are more stable at higher temperatures; however, they can also produce hazardous fumes when heated or exposed to open flames.

Higher boiling points can mean that a compound can remain in a liquid state at higher temperatures, increasing the risk of exposure through vapors or splashes during handling. Additionally, compounds with high boiling points often require more stringent controls and precautions regarding storage and disposal, since they may be more toxic or reactive when heated.

In contrast, while a compound with a boiling point of 100 degrees C can also have safety concerns (such as being a potential irritant, flammable, or toxic), it is generally considered easier to manage at ambient temperatures and poses a lower risk of vapors being generated under standard laboratory conditions.

Hence, the higher boiling point of compound A implies greater potential for hazardous conditions, thereby leading to a higher level of safety concern associated with its use and handling in a laboratory environment.