Question Detail

CHM 102 Alkynes: Structure, Bonding, and Nomenclature Objective Question
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Question

What is the product when acetylene reacts with two equivalents of HBr?
Options
A 1,2‑Dibromoethene
B 1,1‑Dibromoethane
Correct Answer
C 1,2‑Dibromoethane
D Bromoethene
Correct Answer

Option B is the correct answer.

Detailed Explanation

First HBr gives CH₂=CHBr; the second HBr adds Markovnikov to give CH₃CHBr₂ (1,1‑dibromoethane).

Hint

Two successive Markovnikov additions.

Question Info

Course: CHM 102
Topic: Alkynes: Structure, Bonding, and Nomenclature
Type: Objective
Difficulty: Not specified
Question 580 of 1999
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