5
QuizMultiple Choice

Tools, Technology, and Measurement

Question 5 • *26-27 CFISD TX-Chemistry A CR

The MSDS for benzene indicates that it is a clear liquid that has a substantial vapor pressure. It has a health rating of 2, a fire rating of 3, and a reactivity rating of 0. It is a cancer-causing agent. Based on this information, which statement about benzene is accurate?

Answer
A
Benzene readily reacts with moist air.
B
Benzene explodes if the container is shaken.
C
Benzene must be kept away from flames.
D
Benzene must be stored under high pressure.

Explanation

A fire rating of 3 indicates a serious fire hazard, and benzene’s substantial vapor pressure means it can readily produce flammable vapor. Therefore, it must be kept away from flames. A reactivity rating of 0 means benzene is normally stable, so the claims that it reacts readily with moist air or explodes when shaken are not supported.

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