Question:
Lucas reagent is
Lucas reagent is
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Lucas reagent is used for classifying alcohols based on their reactivity with \( ZnCl_2/HCl \), following the SN1 mechanism.
Updated On: Mar 5, 2025
- conc. HCl + anhydrous \( ZnCl_2 \)
- \( Pd + BaSO_4 \)
- dil. HCl + anhydrous \( ZnCl_2 \)
- none of these
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The Correct Option is A
Solution and Explanation
Step 1: Lucas reagent is a solution of concentrated hydrochloric acid and anhydrous zinc chloride (\( ZnCl_2 \)).
It is used to distinguish primary, secondary, and tertiary alcohols based on their reactivity in the Lucas test.
Tertiary alcohols react immediately, secondary alcohols show turbidity after some time, and primary alcohols do not react under normal conditions.
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