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NEET2002ChemistryAlcohols Phenols and EthersActual

Lucas test is used for the determination of

Options

  1. Aalcohols
  2. Balkyl halides
  3. Cphenols
  4. Daldehydes.

Correct answer

A. alcohols

Step-by-step solution

Lucas test-Alcohol reacts with concentrated hydrochloric acid in presence of anhydrous ZnCl ₂ to form alkyl halides. The three type of alcohols undergo this reaction at different rates. Order of rate of reaction is : tertiary > secondary > primary. R- OH + HCl ZnCl ₂ R- Cl + H ₂ O Alkyl chloride

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