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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3si219

Bromobenzene is converted to in dry ether. Which of the following reactions of this reagent (each followed by acid hydrolysis) are correct?

  1. AWith methanal it gives phenylmethanol.
  2. BWith water it gives phenol.
  3. CWith dry it gives benzoic acid.
  4. DWith excess reagent and ethyl ethanoate it gives 1,1-diphenylethanol.

Answer: A, C, D

A Grignard reagent adds to methanal to give a primary alcohol and to to give an acid. With an ester it adds twice, giving a tertiary alcohol: . With water it is protonated to benzene, not phenol, so (B) is wrong.
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