Final answer:
The reaction of ozone to yield short-chain alkanes is not specified in the provided information. The discussed reactions include alkanes with halogens forming halogenated alkanes, and the catalytic destruction of ozone by chlorine radicals from CFCs.
Step-by-step explanation:
The molecule or functional group that reacts with ozone to yield short-chain alkanes is not clearly defined in the materials provided. The examples given refer to the reaction of alkanes with halogens such as chlorine and bromine to produce halogenated alkanes, and the destruction of ozone by chlorine atoms derived from chlorofluorocarbons.
Alkanes react with halogens in the presence of ultraviolet light or at high temperatures to yield chlorinated and brominated alkanes; for instance, chlorine reacts with excess methane (CH4) to give methyl chloride (CH3Cl). Also, it is mentioned that chlorine radicals from chemicals like CFCs can catalyze ozone destruction, but this is a separate process from the production of short-chain alkanes.