Chemistry - Halogen Derivative Question with Solution | TestHub

Question Explanation: The question asks to identify the A and B in a reaction involving electrophilic addition and nucleophilic substitution.

Concept : This question is based on Electrophilic Aromatic Substitution, Nucleophilic Substitution, ${\mathrm{S}}_{\mathrm{N}}2$ Reaction.

Solution : The reaction proceeds via Markovnikov addition of HCl forming A (chloride ). Then, NaI in dry acetone replaces Cl with I (Finkelstein reaction) via an SN 2 reaction to give B .