Question Detail

CHM 102 Practice Questions Objective Question

Question

2-Methylpropene reacts with HBr in the presence of peroxide to give
Options
A A primary alkyl bromide
Correct Answer
B A secondary alkyl bromide
C A tertiary alkyl bromide
D A vicinal dibromide
Correct Answer

Option A is the correct answer.

Detailed Explanation

Anti-Markovnikov addition of HBr to 2-methylpropene (CH3-C(CH3)=CH2) gives 1-bromo-2-methylpropane (isobutyl bromide), which is a primary alkyl bromide (the bromine is attached to a primary carbon).

Hint

What type of alkyl bromide is formed from anti-Markovnikov addition?

Question Info