What Are the Three Stages in Radical Chain Reactions

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The Answer is Many important organic reactions involve radicals, such as the combustion of fuels. Probably the best known is reacting a saturated hydrocarbon, such as ethane, with a halogen, such as Br₂. The overall reaction is as follows:
CH₃CH₃ + Br₂

Many important organic reactions involve radicals, such as the combustion of fuels. Probably the best known is reacting a saturated hydrocarbon, such as ethane, with a halogen, such as Br<sub>2</sub>. The overall reaction is as follows: CH<sub>3</sub>CH<sub>3</sub> + Br<sub>2</sub> CH<sub>3</sub>CH<sub>2</sub>Br + HBr Radical chain reactions occur in three stages: initiation, propagation, and termination. At high temperature or in the presence of light, the relatively weak Br-Br bond is broken in an initiation step that produces an appreciable number of Br atoms (Br∙). During propagation, a bromine atom attacks ethane, producing a radical, which then reacts with another bromine molecule to produce ethyl bromide. The sum of the two propagation steps corresponds to the balanced chemical equation for the overall reaction. There are three possible termination steps: the combination of (1) two bromine atoms, (2) two ethyl radicals, or (3) an ethyl and a bromine radical.

CH₃CH₂Br + HBr
Radical chain reactions occur in three stages: initiation, propagation, and termination. At high temperature or in the presence of light, the relatively weak Br-Br bond is broken in an initiation step that produces an appreciable number of Br atoms (Br∙). During propagation, a bromine atom attacks ethane, producing a radical, which then reacts with another bromine molecule to produce ethyl bromide. The sum of the two propagation steps corresponds to the balanced chemical equation for the overall reaction. There are three possible termination steps: the combination of
(1) two bromine atoms,
(2) two ethyl radicals, or
(3) an ethyl and a bromine radical.

What Are the Three Stages in Radical Chain Reactions

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What Are the Three Stages in Radical Chain Reactions

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