Question:
The correct order of the ease of dehydration of the following alcohols by the action of conc. H2SO4 is:
The correct order of the ease of dehydration of the following alcohols by the action of conc. H2SO4 is:
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The stability of carbocations increases with the number of alkyl groups attached to the central carbon. Tertiary carbocations are the most stable and lead to the fastest dehydration.
Updated On: Feb 25, 2025
(CH3)3C – OH > (CH3)2CH – OH > CH3CH2 – OH
(CH3)2CH – OH > CH3CH2 – OH > (CH3)3C – OH
CH3CH2 – OH > (CH3)2CH – OH > (CH3)3C – OH
(CH3)2CH – OH > (CH3)3C – OH > CH3CH2 – OH
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The Correct Option is A
Solution and Explanation
The ease of dehydration is based on the stability of the carbocation formed during the reaction. Tertiary alcohols (like (CH3)3C – OH
undergo dehydration the most easily due to the formation of a stable tertiary carbocation.
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