Question Detail
Question
Predict which of the following alkenes reacts the fastest with HCl?
Correct Answer
Option D is the correct answer.
Detailed Explanation
The fastest reaction with HCl occurs for the most substituted alkene because it forms the most stable carbocation intermediate. (CH3)2C=CHCH2CH3 (2-methyl-2-pentene) is a trisubstituted alkene and will react fastest.
Hint
Which alkene is most substituted and forms the most stable carbocation?