Summary organic chemistry- reactions

# Organic Reactions – Complete Notes (Simple & Exam Ready) Learn **Organic Reactions** in a clear and structured way with these easy-to-follow chemistry notes. Perfect for understanding how organic compounds change and react. --- ## What are Organic Reactions? Organic reactions are chemical changes that involve carbon-based compounds, especially hydrocarbons and their derivatives. These reactions form new substances by breaking and making chemical bonds. --- ## Main Types of Organic Reactions: ### 1. Addition Reactions * Two molecules combine to form one product * Common in **alkenes** (because of the double bond) Example: Ethene + Hydrogen → Ethane --- ### 2. Substitution Reactions * One atom or group replaces another in a molecule * Common in **alkanes** Example: Methane + Chlorine → Chloromethane + HCl --- ### 3. Elimination Reactions * A small molecule is removed from a larger molecule * Often forms a double bond Example: Alcohol → Alkene + Water --- ### 4. Combustion Reactions * Reaction with oxygen * Produces energy Example: Hydrocarbon + O₂ → CO₂ + H₂O --- ### 5. Polymerization * Small molecules (monomers) join to form large molecules (polymers) Example: Ethene → Polyethene (plastic) --- ## Key Ideas: * Alkanes → mostly substitution reactions * Alkenes → mostly addition reactions * Oxygen reactions → combustion * Alcohols → elimination reactions --- ## Reaction Conditions: * Heat * Catalyst * Light (UV for halogenation) * Pressure (in some reactions) --- ## Why These Notes? * Simple and easy explanations * Clear reaction types with examples * Perfect for revision and exams * Helps connect theory to reactions --- ## Best For: * High school chemistry students * Exam preparation * Self-study learners --- ## Format: Neatly structured, easy to revise, and ready for instant download. Master organic reactions confidently with these clear and well-organized notes.