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JEE Main202226 Jul 2022Morning ShiftChemistryAldehydes and KetonesActual

Which reactant will give the following alcohol on reaction with one mole of phenyl magnesium bromide PhMgBr followed by acidic hydrolysis?

Options

  1. ACH 3 – C ≡ N
  2. BPh - C ≡ N

Correct answer

3

Step-by-step solution

Phenyl magnesium bromide is called Grignard reagent. One mole of this react with carbonyl compound to give alcohols. It react with aldehyde to form secondary alcohol while with ketones gives tertiary alcohols. The given compound is a tertiary alcohol so, reactant should be a ketone.

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