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Multiple Choice

Which of the following is an example of a hydrocarbon derivative?

A hydrocarbon derivative is a compound that starts from a hydrocarbon but has one or more hydrogen atoms replaced by another atom or group. Chloroform shows this clearly: its formula is CHCl3, which is methane (a hydrocarbon) with three hydrogens replaced by chlorine atoms. This halogenated derivative demonstrates how the hydrocarbon framework can be modified to form a new compound. The other listed substances are still simple hydrocarbons consisting only of carbon and hydrogen, with no substitutions or functional group additions, so they aren’t derivatives.

A hydrocarbon derivative is a compound that starts from a hydrocarbon but has one or more hydrogen atoms replaced by another atom or group. Chloroform shows this clearly: its formula is CHCl3, which is methane (a hydrocarbon) with three hydrogens replaced by chlorine atoms. This halogenated derivative demonstrates how the hydrocarbon framework can be modified to form a new compound. The other listed substances are still simple hydrocarbons consisting only of carbon and hydrogen, with no substitutions or functional group additions, so they aren’t derivatives.