Reactions Of Halogenoalkanes 1 Chemsheets Answers Exclusive !free! Now
Reactions of Halogenoalkanes
- Aqueous base or acid hydrolysis of haloalkanes yields alcohols via substitution. For example, R–Br + OH– → R–OH.
- Haloarenes resist direct hydrolysis; require activating groups or severe conditions.
- Propene (major via E2) + small amount of propan-1-ol? No – ethanol with KOH drives elimination. Minor substitution gives 1-ethoxypropane (Williamson ether).
- The key reaction types in that worksheet
- Mechanisms (nucleophilic substitution, elimination)
- How to work through common questions
- Final “check” answers in descriptive form so you can verify your own work
- C–I bond weaker than C–Cl
- Iodine is larger → less polar but easier to break heterolytically in SN1 or SN2
- In SN2: Iodide is better leaving group because it stabilizes negative charge better than Cl⁻ or F⁻.
2. Nucleophilic Substitution (SN1 & SN2)
Q5: Reaction with water (slow hydrolysis)
- Experiment: Halogenoalkanes are added to ethanol and aqueous silver nitrate.
- Observation: A precipitate of silver halide forms ($AgX$).
9. Final “Self-Check” Table
