Which alcohol gives turbidity immediately at room temperature with Lucas reagent ( $ZnCl X_{2}$ /conc. $HCl$ )?

Abutan-2-ol
B2-methylpropan-1-ol
Cbutan-1-ol
D2-methylpropan-2-ol

Answer: D

Lucas reagent converts alcohols to alkyl chlorides through carbocations (SN1). Tertiary alcohols react instantly, secondary ones in about 5 minutes and primary ones show no turbidity at room temperature. 2-Methylpropan-2-ol is the only tertiary alcohol.

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Which alcohol gives turbidity immediately at room temperature with Lucas reagent (ZnClX2​/conc. HCl)?

Answer: D

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Which alcohol gives turbidity immediately at room temperature with Lucas reagent ( $ZnCl X_{2}$ /conc. $HCl$ )?