The major product of acid catalysed dehydration of 3- pentanol is:
Correct answer: B. 3-Pentene
- A. 1-Pentene
- B. 3-Pentene
- C. 2-Methylbutane
- D. 3-Methylbutane
Explanation
The major product is 2-pentene because it is the most stable alkene formed after carbocation rearrangement and follows Zaitsev's rule. The reaction proceeds through an E1 mechanism involving a carbocation intermediate and rearrangement.
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About Alcohols
Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.
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