CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2011

  • question_answer
    The compound which gives turbidity immediately with Lucas reagent at room temperature is

    A)  butan-1-ol

    B)  butan-2-ol

    C)  2-methyl propan-2-ol

    D)  2-methyl propan-1-ol

    Correct Answer: C

    Solution :

    Tertiary alcohols gives turbidity immediately with Lucas reagent. 2-methyl propan-2-ol is an example of tertiary alcohol.                 \[\underset{\begin{smallmatrix}  2-methyl\text{ }propan-2-ol \\  ({{3}^{o}}\,alcohol) \end{smallmatrix}}{\mathop{{{H}_{3}}-\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{3}}}}\,\]


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