Question Detail

CHM 102 Practice Questions Objective Question

Question

2-Butene reacts with HBr to give
Options
A 1-Bromobutane
B 2,3-Dibromobutane
C 2-Bromobutane
Correct Answer
D 2,2-Dibromobutane
Correct Answer

Option C is the correct answer.

Detailed Explanation

2-Butene (CH3CH=CHCH3) is a symmetrical alkene. Addition of HBr across the double bond gives 2-bromobutane (CH3CHBrCH2CH3). Both carbons of the double bond are equivalent, so only one product is formed.

Hint

What is the addition product of HBr to a symmetrical alkene?

Question Info