what is Lucas reagent?????
Answers
Answered by
1
Lucas' reagent" is a solution of anhydrous zinc chloride in concentrated hydrochloric acid. This solution is used to classify alcohols of low molecular weight. The reaction is a substitution in which the chloride replaces a hydroxyl group.
Answered by
5
Lucas test is performed to distinguish primary, secondary and tertiary alcohols and which alcohol gives fastest alkyl halide. Lucas test is based on the difference in reactivity of alcohols with hydrogen halide.
more information
As the mechanism is SN1, a tertiary alcohol should react immediately, a secondary alcohol react more slowly (perhaps in 5 minutes if at all) and primary alcohols often don't react at all. ... A positive result is a white cloudiness within 5 minutes or a new organic layer (RCl) formation on the top.
Similar questions