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Alkenes
infoWhy this? The carbon–carbon double bond explains the characteristic reactivity of alkenes, including electrophilic addition and addition polymerisation. Their structures also introduce stereoisomerism and show how hydrocarbons become useful chemical feedstocks.
scheduleWhy now? Alkanes provide a comparison between saturated and unsaturated structures, while elimination from halogenoalkanes supplies a familiar route to alkenes. Studying addition reactions here establishes another mechanism and prepares us for the formation of alcohols by hydration.
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