When treating an unknown alcohol with the Lucas reagent (anhydrous and conc. ), turbidity appears immediately at room temperature. The alcohol is most likely:

Question

When treating an unknown alcohol with the Lucas reagent (anhydrous $ZnCl_2$ and conc. $HCl$), turbidity appears immediately at room temperature. The alcohol is most likely:

Prashant Kotian · Accepted Answer

Correct answer: A. Tertiary alcohols (like 2-methylpropan-2-ol) react instantly with the Lucas reagent via an mechanism to form an insoluble alkyl chloride, yielding immediate turbidity. Primary alcohols do not produce turbidity at room temperature.

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