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1-BUTANOL AND 2-BUTANOL ON DEHYDRATION WITH CONC.H2SO4 GIVE THE SAME MIXTURE OF 1-BUTENE AND 2-BUTENE

1-BUTANOL AND 2-BUTANOL ON DEHYDRATION WITH CONC.H2SO4 GIVE THE SAME MIXTURE OF 1-BUTENE AND 2-BUTENE

Grade:12th pass

1 Answers

Bhavya
askIITians Faculty 1281 Points
8 years ago
In the question you yourself has given the answer.The only point is 1-butanol gives but-1-ene as normal product and 2-butene on rearrangement of carbocation (from primary to secondary).
CH3CH2CH(OH)CH3 ---> Here dehydration can occur from both sides i.e. loss of H-OH can occur from left and right sides through underlined hydrogens giving both 2-butene and 1-butene.

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