allery**Lucas reagent** is a mixture of
A$Br_2$ + $FeBr_3$
Bconc. $HCl$ + anhydrous $ZnCl_2$
C$H_2SO_4$ + $K_2Cr_2O_7$
Ddil. $HCl$ + $NaOH$
Answer & Solution
Correct answer: B. conc. $HCl$ + anhydrous $ZnCl_2$
**Lucas reagent:** conc.
HCl + anhydrous $ZnCl_2$.
Used to classify alcohols by how fast they turn cloudy: 3°
→ immediate, 2° → 5 min, 1°
→ no reaction at RT.
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