Which of the following alcohols reacts fastest with Lucas reagent?
Lucas reagent (ZnCl₂ in conc. HCl) reacts fastest with tertiary alcohols like (CH₃)3COH due to the stability of the tertiary carbocation, causing immediate turbidity.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Alcohols - from Alkenes Haloalkanes Carbonyls Grignard