A-Level AQA Chemistry Mechanisms –
2025/2026 Updated Study Guide & Practice
Questions | Exam Prep & Revision Notes |
100% Pass Guarantee
electrophilic addition of alkenes with sulfuric acid - correct answer
electrophilic addition of alkenes with bromide - correct answer
electrophilic addition of alkenes with bromine - correct answer
free radical substitution of alkanes with bromine - correct answer
Three steps of free radical substitution - correct answerinitiation, propagation,
termination
essential condition of free radical substitution - correct answerUV light (for initiation)
elimination of halogenoalkanes with ethanolic hydroxide ions - correct answer
acid catalysed addition mechanism for hydration of ethene - correct answer
where does the H+ come from in the acid catalysed addition mechanism for hydration of
ethene - correct answerconcentrated phosphoric acid (H3PO4)
acid catalysed elimination mechanism for alcohol to alkenes - correct answer
where does the H+ come from in the acid catalysed elimination mechanism of alcohols
to alkenes - correct answerconcentrated phosphoric acid (H2SO4) or concentration
sulfuric acid (H2SO4)
nucleophilic substitution of halogenoalkanes with cyanide ions - correct answer
nucleophilic substitution of halogenoalkanes with aqueous hydroxide ions - correct
answer
Nucleophilic addition-elimination of acyl chloride and primary amine - correct answer
nucleophilic addition-elimination of acyl chloride and alcohol - correct answer
2025/2026 Updated Study Guide & Practice
Questions | Exam Prep & Revision Notes |
100% Pass Guarantee
electrophilic addition of alkenes with sulfuric acid - correct answer
electrophilic addition of alkenes with bromide - correct answer
electrophilic addition of alkenes with bromine - correct answer
free radical substitution of alkanes with bromine - correct answer
Three steps of free radical substitution - correct answerinitiation, propagation,
termination
essential condition of free radical substitution - correct answerUV light (for initiation)
elimination of halogenoalkanes with ethanolic hydroxide ions - correct answer
acid catalysed addition mechanism for hydration of ethene - correct answer
where does the H+ come from in the acid catalysed addition mechanism for hydration of
ethene - correct answerconcentrated phosphoric acid (H3PO4)
acid catalysed elimination mechanism for alcohol to alkenes - correct answer
where does the H+ come from in the acid catalysed elimination mechanism of alcohols
to alkenes - correct answerconcentrated phosphoric acid (H2SO4) or concentration
sulfuric acid (H2SO4)
nucleophilic substitution of halogenoalkanes with cyanide ions - correct answer
nucleophilic substitution of halogenoalkanes with aqueous hydroxide ions - correct
answer
Nucleophilic addition-elimination of acyl chloride and primary amine - correct answer
nucleophilic addition-elimination of acyl chloride and alcohol - correct answer
