Chemistry - Halogen Derivative Question with Solution | TestHub

Reaction (IV): Isobutylene (2-methylpropene) is converted into tert-butyl chloride (2-chloro-2-methylpropane). Reagent (ii): This transformation is achieved using HCl, which adds across the carbon-carbon double bond. Mechanism (R): The reaction follows an Electrophilic Addition reaction mechanism following Markovnikov's rule via a stable tertiary carbocation. Conclusion: Therefore, compound (IV) matches with reagent (ii) and mechanism (R), which corresponds to option (D).