GKFix MCQ Question

What reaction type explains (CH₃)₃C–CH(OH)CH₃ + HBr → (CH₃)₂CBrCH₂CH₂CH₃ + H₂O?

• A. Free radical substitution
• B. Electrophilic addition
• C. Substitution with rearrangement
• D. Nucleophilic addition