Question

Lucas test is used for the determination of

(a) alcohols

(b) alkyl halides

(c) phenols

(d) aldehydes.

Answer 1

The correct option is: (a) alcohols

Explanation:

Lucas test - Alcohol reacts with concentrated hydrochloric acid in presence of anhydrous ZnCl₂ to form alkyl halides. The three types of alcohols undergo this reaction at different rates. Order of rate of reaction is : 

tertiary > secondary > primary.