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COMEDK20269 May 2026Morning ShiftChemistryAlcohols Phenols and EthersActual

Which one of the following statements is wrong ?

Options

  1. AAnisole is prepared by reaction between Bromobenzene and Sodium methoxide
  2. BTert. butyl methyl ether reacts with Conc. HI on heating to form 2–Iodo–2–methylpropane and Methanol by S_N1 m
  3. CIsopropyl methyl ether reacts with Conc. HI to produce isopropyl alcohol and methyl iodide by S_N2 mechanism
  4. DAnisole reacts with Ethanoyl chloride / anhydrous AlCl ₃ in CS ₂ to form 4–Methoxyacetophenone in larger amoun

Correct answer

A. Anisole is prepared by reaction between Bromobenzene and Sodium methoxide

Step-by-step solution

Bromobenzene does not undergo nucleophilic substitution easily due to the partial double bond character of the C-Br bond. Therefore, anisole cannot be prepared by the reaction between bromobenzene and sodium methoxide. Anisole is prepared by Williamson ether synthesis using sodium phenoxide and methyl halide (such as methyl bromide or methyl iodide). Tert-butyl methyl ether reacts with concentrated HI via an S_N1 mechanism because the tert-butyl carbocation is highly stable, yielding 2-iodo-2-methylpropane and meth

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