Reaction with Hydrogen Halides
Alkenes react with gaseous hydrogen halides or hydrogen halides in solution (acids) at room temperature. Unsymmetrical alkenes give two products: a major product and a minor product which are isomers.

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- carbocation
- A positively charged carbon-containing ion, formed when a carbon atom has only three bonds and a positive charge.
More in Alkenes
- Stereoisomerism in Alkenes
- Reactions of Alkenes
- Hydrogenation
- Reaction with Halogens
- Reaction with Steam
- Oxidation of Alkenes to Diols
- Addition Polymerisation
- Environmental Concerns
All 11 lessons in Alkenes · All OCR A-level Organic Chemistry topics