A) butan-1-ol
B) butan-2-ol
C) 2-methyl-propan-l-ol
D) 2-methyl propan-2-ol
Correct Answer: A
Solution :
Tertiary alcohols react faster with Lucas reagent. They give turbidity with Lucas reagent (conc. \[HCl+anhyd.\] \[ZnC{{l}_{2}}\]) at once. Hence, 2-methyl propan-2-ol will react with Lucas reagent faster. \[{{H}_{3}}C-\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\]
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