In the chlorination of CH4, some CH3 CH2 Cl is obtained as a product. Explain why this should be

step 1 Chlorination of methane occurs via a radical reaction. So it's possible that a methane radical w

In the chlorination of CH4, some CH3 CH2 Cl is obtained as a...

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Key Concepts

Multiple Reaction Pathways

Due to the radical mechanism and the possibility of radical recombination, reactions such as chlorination do not always proceed via a single, uniform pathway. Instead, intermediates like ethane formed from the coupling of methyl radicals can be further transformed by subsequent reactions (e.g., chlorination). This concept highlights how side reactions can lead to unexpected products in radical reactions.

Radical Recombination

In a radical process, different radicals can combine to form new molecules. In this context, methyl radicals formed from methane may combine with each other to form ethane. This ethane can then undergo further chlorination, leading to products such as ethyl chloride (CH?CH?Cl). The recombination of radicals is a side reaction that explains deviations from the expected simple substitution outcome.

Radical Chain Mechanism

This concept refers to a reaction pathway initiated by the generation of radicals, which then propagate the reaction through a series of steps. In the chlorination of methane, chlorine radicals generated by photolysis attack methane to form methyl radicals, which further react with molecular chlorine. The process involves initiation, propagation, and termination steps typical of free radical reactions.

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