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JEE Main & Advanced JEE Main Paper (Held On 22 April 2013)

  • question_answer
    Amongst the following alcohols which would react fastest with conc. HCI and \[ZnC{{l}_{2}}\]?     JEE Main  Online Paper (Held On 22 April 2013)

    A)  pentanol                              

    B)  2-methylbutanol

    C)  2-pentanol                          

    D)  2-methy lbutan-2ol

    Correct Answer: D

    Solution :

    \[\text{ZnC}{{\text{l}}_{\text{2}}}\text{+ conc}\text{. HCl}\]is Lucas reagent. Lucas reagent reacts fastest with tertiary alcohol. \[{{\text{3}}^{o}}\]alcohol + Lucas reagent = Immediate turbidity


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