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JEE Main201912 Jan 2019Morning ShiftChemistryAlcohols Phenols and EthersActual

cannot be prepared by:

Options

  1. AHCHO + PhCH CH 3 CH 2 MgX
  2. BPhCOCH 2 CH 3 + CH 3 MgX
  3. CCH 3 CH 2 COCH 3 + PhMgX
  4. DPhCOCH 3 + CH 3 CH 2 MgX

Correct answer

A. HCHO + PhCH CH 3 CH 2 MgX

Step-by-step solution

The given compound is tertiary alcohol and formaldehyde forms secondary alcohol on reaction with Grignard reagent.

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