The dehydration of 2-methyl butanol with conc. H_2SO_4 gives **[UP CPMT 2004]**

JEE Main Chemistry question

The dehydration of 2-methyl butanol with conc. gives **[UP CPMT 2004]**

(A)2-methyl butane as major product
(B)Pentene
(C)2-methyl but-2-ene as major productCorrect
(D)2-methyl pent-2-ene

Answer: (C)

Solution

Dehydration follows Zaitsev's rule, removing a -hydrogen to give the more substituted (more stable) alkene. 2-Methylbutan-1-ol, via a rearranged (more stable, tertiary) carbocation, loses water preferentially to give the more substituted alkene 2-methylbut-2-ene as the

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Question ID VK-148431