Free Radical Substitution of Alkanes (A-Level Chemistry)

Outlining the free radical substitution of alkanes, covering the mechanism and reaction in full. The formation of free radicals by homolytic fission (initiation step) is explained, along with the chain reaction nature of free radical substitution. An example of of methane with chlorine to form chloromethane is shown, highlighting possible further substitutions to form dichloro, trichloro and tetrachloromethane.

Recap: 00:29
Forming of Free Radicals (Homolytic Fission): 01:37
Mechanism: 03:03
EXAMPLE methane and chlorine: 04:19
Further substitution: 06:25
Summary: 07:43

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