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How does BENZYL alcohol react to LUCAS test? Does the turbidity appear immediately or after a long time?

6 years ago


Answers : (1)


Dear Aveek

Lucas' reagent is a solution of zinc chloride  in concentrated hydrochloric acid, used to classify alcohols of low molecular weight. The reaction is a substitution  in which the chlorine replaces the hydroxy group,The reagent dissolves the alcohol, removing the OH group, forming a carbocation. The speed of this reaction is proportional to the energy required to form the carbocation, so Tertiary, benzylic, and allylic carbocations react quickly, while smaller, less substituted, alcohols react more slowly

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6 years ago

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