Carbocations are frequent intermediates in the reactions we have been studying.

Question

Carbocations are frequent intermediates in the reactions we have been studying. Put a check mark next to every item below that a carbocation can do: Rearrange to a more stable carbocation. Lose a proton to form an alkene. Combine with a nucleophile. React with an alkene to form a larger carbocation. Which statement(s) is/are true of acid-catalyzed alcohol dehydrations? a) Protonation of the alcohol is a fast step. b) Formation of a carbocation from the protonated alcohol is a slow step. c) Rearrangements of less stable carbocation to more stable carbocations are d) Loss of a proton by the carbocation intermediate is fast step. e) All of these choices.

Explanation / Answer

1. yes. carbocations rearreange to form a more stable form.

2. yes.

3. yes

4. yes.

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