Organic reaction types, reaction conditions and polymers
≈ 50 minOrganic reaction types, reaction conditions and polymers
Organic reactions are classified by what changes in the structure. Addition reactions add atoms across a carbon-carbon double bond, turning an alkene into a more saturated product. Substitution reactions replace one atom or group with another, often in a haloalkane or alkane under stated conditions. Elimination removes a small molecule to create a double bond. Esterification joins an alcohol and a carboxylic acid to form an ester and water. Conditions such as heat, catalyst, acid or ultraviolet light are part of a reaction description because they affect which pathway is feasible. Polymerisation links many monomers; addition polymers form from unsaturated monomers, while condensation polymers form with small molecules eliminated.
Work it through
Ethene reacts with bromine by addition: the C=C double bond opens and each carbon gains a bromine atom, forming 1,2-dibromoethane. The bromine-water decolourisation test is evidence of an unsaturated C=C bond under the stated conditions. Do not write an alkane product while leaving the double bond unchanged.
Mastery target
Classify an organic reaction from structural change, state an appropriate condition or product pattern and link a monomer structure to polymer formation.
What happens in the addition of bromine to ethene?
Name the key chemistry term from Organic reaction types, reaction conditions and polymers that best fits the explanation and visual model.
Which monomer can form an addition polymer most directly?
Which statement corrects a common misunderstanding in Organic reaction types, reaction conditions and polymers?