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JEE Main2013ChemistryAlcohols Phenols and EthersActual

Amongst the following alcohols which would react fastest with conc. HCl and ZnCl ₂ ?

Options

  1. Apentanol
  2. B2-methyl butanol
  3. C2-pentanol
  4. D2-methyl butan-2-ol

Correct answer

D. 2-methyl butan-2-ol

Step-by-step solution

ZnCl ₂+ conc. HCl is Lucas reagent. Lucas reagent reacts fastest with tertiary alcohol. 3^ alcohol + Lucas reagent = Immediate turbidity

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