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Question: Answered & Verified by Expert
Lucas test is used for the determination of
ChemistryAlcohols Phenols and EthersAP EAMCETAP EAMCET 2021 (23 Aug Shift 1)
Options:
  • A aldehydes
  • B phenols
  • C carboxylic acid
  • D alcohols
Solution:
1785 Upvotes Verified Answer
The correct answer is: alcohols
Lucas test is used to distinguish alcohols.
Lucas reagent is a solution of anhydrous zinc chloride in concentrated $\mathrm{HCl}$.
Lucas reagent converts alcohols to alkyl chlorides. Tertiary alcohols give immediate reaction with Lucas reagent, secondary alcohols give reaction within five minutes, while primary alcohol do not give reaction with it.

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