What is the correct order of reactivity of alcohols in the f... | CHEMISTRY - ALCOHOLS AND PHENOLS | SolveeIt | Solveeit

Today, August 18

Question

What is the correct order of reactivity of alcohols in the following reaction?

$R - OH + HCl\overset{\quad ZnCl_{2}\quad}{\rightarrow}R - Cl + H_{2}O$

A

$1º > 2º > 3º$

B

$1º < 2º > 3º$

C

$3º > 2º > 1º$

D

$3º > 1º > 2º$

Answer

$3º > 2º > 1º$

Explanation

Solution

The correct order of reactivity of alcohols towards Lucas reagent (Conc. HCl and $ZnCl_{2}$ ) is : $3º > 2º > 1º$ in case of tertiary alcohols turbidity is produced immediately as they form the halides easily. Primary alcohols do not produce turbidity at room temperature.