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Longest Chain Rule

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How will you distinguish primary, secondary and tertiary alcohol by Lucas Test?

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Solution

Lucas Test is used to distinguish primary, secondary and tertiary alcohols by using the Lucas reagent (anhy $Z n C l_{2} + H C l)$ .
$C H_{3} C H_{3} O H 1^{\circ} a l c o h o l + H C l a n h y Z n C l_{2} - ------ \to C H_{3} C H_{3} C l + H_{2} O T u r b i d i t y a p p e a r s o n h e a t i n g$

$C H_{3} - O H | C H - C H_{3} 2^{\circ} a l c o h o l + H C l a n h y . Z n C l_{2} - ------ \to C H_{3} - C H | C H_{3} - C l + H_{2} O T u r b i d i t y a p p e a r s w i t h i n 5 m i n$

$C H_{3} - C H_{3} | C | C H_{3} - O H 3^{\circ} a l c o h o l + H C l a n h y . Z n C l_{2} - ------ \to C H_{3} - C H_{3} | C | C H_{3} - C l + H_{2} O T u r b i d i t y a p p e a r s i m m e d i a t e l y$

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