Reactions of Alkenes
Alkenes react because the carbon-carbon double bond contains an electron-rich pi bond. These pages separate the key addition reactions and chemical tests so students can revise reagents, conditions, products and observations clearly.
Revision Notes
Work through each part of Edexcel Topic 6 in a structured sequence.
Halogens
Revise the addition reactions of alkenes with halogens, including how the C=C bond reacts with Br₂ and Cl₂.
Start revisingHydrogen Halide
Learn how hydrogen halides add across the C=C bond and how major products can form with unsymmetrical alkenes.
Start revisingBromine Water
Review the bromine water test for unsaturation, including the colour change from orange to colourless.
Start revisingHydrogen
Revise hydrogenation of alkenes, including conversion to alkanes using a nickel catalyst.
Start revisingSteam
Learn how steam adds to alkenes in hydration reactions to produce alcohols under suitable conditions.
Start revisingKMnO₄
Review oxidation of alkenes with potassium manganate(VII) and how this can be used as a chemical test.
Start revisingReactions of Alkenes – Edexcel A Level Chemistry
The following specification points outline the knowledge and skills students are expected to demonstrate for Topic 6.
6A: Introduction to organic chemistry
6C: Alkenes
Reactions of Alkenes – Edexcel A Level Chemistry
The following specification points outline the knowledge and skills students are expected to demonstrate for Topic 6.
6A: Introduction to organic chemistry
6C: Alkenes
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