Which alcohol, when treated with Lucas reagent, shows turbidity within 5–10 minutes?
Propan-2-ol (CH₃CH(OH)CH₃), a secondary alcohol, forms a secondary carbocation with Lucas reagent (ZnCl₂ in conc. HCl), causing turbidity in 5–10 minutes.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
