What does CH3Br represent?

The chemical formula CH3Br represents methyl bromide, which is a colorless, odorless gas used primarily as a pesticide and fumigant. It consists of a methyl group (CH3) attached to a bromine atom (Br). Methyl bromide is notable for its application in agriculture and its role in pest control, although it is also subject to regulation due to its potential harmful effects on the ozone layer.

Understanding the structure of CH3Br helps in recognizing that it includes a carbon atom bound to three hydrogen atoms and one bromine atom, leading to the designation of methyl bromide. This clarity reinforces why methyl bromide is the correct answer as it specifically defines the compound's structure and composition accurately. Other options reference different chemical compounds or categories that do not match the molecular formula or its structural characteristics.