Haloalkanes and Haloarenes · Class 12 · CBSE · Science Chemistry
Which of the following alkyl halides undergoes hydrolysis most rapidly via the SN1 mechanism?
Practice question from Haloalkanes and Haloarenes (Class 12 · CBSE · Science Chemistry), with the correct answer and a step-by-step solution.
medium · MCQ · Q-1C250B
Which of the following alkyl halides undergoes hydrolysis most rapidly via the mechanism?
- A.1-Chlorobutane
- B.1-Iodobutane
- C.2-Iodobutane
- D.2-Iodo-2-methylpropaneCorrect answer
Solution
The rate of reaction depends on the stability of the carbocation formed after the loss of the halide ion. 2-Iodo-2-methylpropane is a tertiary alkyl halide and forms a tertiary carbocation, which is the most stable among the given options. Furthermore, iodide is the best leaving group.
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