Question:

Dehydration of the following in increasing order is

Updated On: Jul 6, 2022
  • $I < II < III < IV$
  • $II< III< IV < I$
  • $I < III < IV < II$
  • None of these
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The Correct Option is A

Solution and Explanation

Dehydration of $IV$ is most facile since, it gives an aromatic compound. Dehydration of $III$ gives a conjugated diene which is stabilised by resonance.
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Concepts Used:

Alcohols, Phenols, and Ethers

Alcohol is formed when a saturated carbon atom bonds to a hydroxyl (-OH) group. It is an organic compound that contains a hydroxyl functional group attached to a carbon atom.

Phenol is formed when the -OH group replaces the hydrogen atom in benzene. It is an organic compound in which a hydroxyl group directly attaches to an aromatic hydrocarbon.

Ether is formed when oxygen atom bonds to two alkyl or aryl groups. It is an organic compound that has an oxygen atom that is connected to two aryl and alkyl groups.

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