Exemplar Problems

Problem 9 : Classify the following reactions as substitution, addition, elimination, or rearrangement reactions:

(a) CH₃CH₂OH → CH₃CHO (b) CH₄ + Cl₂ → CH₃Cl + HCl (c) CH₃COOH + NH₃ → CH₃CONH₂ + H₂O (d) CH₃CH₂Br + KOH → CH₃CH₂OH + KBr

Solution :

(a) CH₃CH₂OH → CH₃CHO: Dehydrogenation (Elimination) reaction (b) CH₄ + Cl₂ → CH₃Cl + HCl: Substitution reaction (c) CH₃COOH + NH₃ → CH₃CONH₂ + H₂O: Substitution reaction (d) CH₃CH₂Br + KOH → CH₃CH₂OH + KBr: Substitution reaction