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Question: Answered & Verified by Expert
1-Propanol can be distinguished from 2-propanol by which test?
ChemistryAlcohols Phenols and EthersTS EAMCETTS EAMCET 2023 (13 May Shift 1)
Options:
  • A 2, 4-DNP test
  • B Tollen's test
  • C Lucas test
  • D Fehling's test
Solution:
2047 Upvotes Verified Answer
The correct answer is: Lucas test
Primary and Secondary alcohols can be distinguished by the Lucas test. It involves heating the alcohol with anhydrous $\mathrm{ZnCl}_2$ in concentrated $\mathrm{HCl}$.
Turbidity is observed for $2^{\circ}$ alcohols after some time while no turbidity is observed for a $1^{\circ}$ alcohol.

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