#chemistry
#lucasreagent
Solution of ZnCl₂ in conc. HCl is known as Lucas reagent.
It is used to differentiate primary, secondary and tertiary alcohols.
On adding the alcohol to Lucas reagent, a tertiary alcohol reacts immediately forming a ppt of alkyl chloride. If the ppt. appears after few minutes, the alcohols is secondary. If no ppt, is obtained in cold the alcohol is primary.
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