Question Detail

CHM 102 Practice Questions Objective Question
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Question

Which of the following compounds reacts fastest with HBr?
Options
A 1-propanol
B 2-methyl-1-propanol
C 2-propanol
D 2-methyl-2-propanol
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

2-Methyl-2-propanol (tert-butyl alcohol, tertiary) reacts fastest with HBr because it forms the most stable tertiary carbocation. The reactivity order with HX is: tertiary > secondary > primary.

Hint

Which alcohol forms the most stable carbocation?

Question Info

Course: CHM 102
Topic: Practice Questions
Type: Objective
Difficulty: Not specified
Question 1272 of 1999
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