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COMEDK2025ChemistryAlcohols Phenols and EthersActual

Choose the incorrect statement.

Options

  1. AIn the acid catalysed hydration of Ethene, an Oxonium ion is formed when it reacts with H ₃ O ⁺ and a Carbocat
  2. BCresols are less acidic than Phenol because electron releasing groups do not favour formation of Phenoxide ion
  3. CEthanol acts as Nucleophile when the O - H bond is broken and acts as Electrophile on getting protonated.
  4. DIn the reaction between Ethanol and Conc. H ₂ SO ₄ at 413 K , an Oxonium ion is formed when Ethanol gets proto

Correct answer

A. In the acid catalysed hydration of Ethene, an Oxonium ion is formed when it reacts with H ₃ O ⁺ and a Carbocat

Step-by-step solution

In the acid catalysed hydration of ethene, the mechanism involves the protonation of ethene by H ₃ O ⁺ to form a carbocation intermediate, not an oxonium ion. The water molecule then acts as a nucleophile to attack the carbocation. Thus, the statement in option (NCmIr) is incorrect. Cresols contain a methyl group, which is an electron-donating group (+I effect). This destabilizes the phenoxide ion formed after the loss of a proton, making cresols less acidic than phenol. This statement is correct. Ethanol acts as a

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