Question Detail
Question
What is the major product when propyne (CH₃C≡CH) reacts with one equivalent of HBr?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Markovnikov addition: H adds to the less substituted (terminal) carbon, Br adds to the more substituted carbon, giving 2‑bromopropene (CH₃CBr=CH₂).
Hint
Markovnikov across one π bond.