The Lucas test is used to distinguish small (7 or few carbons) $1 °, 2 ° and 3 ° -$ alcohols. The alcohol to be tested is added to solution of anhydrous $Z n C l_{2}$ in $C o n . H C l$ at room temperature. Which of the following statement is incorrect?

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$3 ° -$ alcohols react quickly to give an insoluble $R X$

$3 ° -$ alcohols rapidly dehydrate, and the gaseous alkene bubbles comes out of the test solution

$1 ° -$ alcohols dissolve, but do not react

$2 ° -$ alcohols dissolve and react slowly to give an insoluble alkyl chloride

answer is C.

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Detailed Solution

The Lucas test is used to distinguish small (7 or few carbons) $1 °, 2 ° and 3 ° -$ Alcohols. The alcohol to be tested is added to the solution of anhydrous $Z n C l_{2}$ in $C o n . H C l$ at room temperature. Here $1 ° -$ Alcohol dissolves, but does not react. $2 ° -$ Alcohols dissolve and react slowly to give an insoluble alkyl chloride and $3 ° -$ Alcohols react quickly to give an insoluble $RX$ .