alcohol dehydration

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datdat

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one of kaplan subj test explination about the alcohol dehydration is primary is slowest and the tertiary is the fastest...why is that? anybody could help?

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That's becasue dehyration is removing OH and forming carbocation and you want to form most stable carbocation thus it's tertiary.
 
Yeah dehydration of alcohols is E1 mechanism, and E1 and Sn1 use carbocation intermediates and tertiary carbocation is fastest
 
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