WB JEE Medical WB JEE Medical Solved Paper-2012

  • question_answer
    Under identical conditions, the \[{{S}_{N}}1\]reaction will occur most efficiently with

    A)  tert - butyl chloride

    B)  1-chlorobutane

    C)  2-methyl 1- chloropropane

    D)  2-chlorobutane

    Correct Answer: A

    Solution :

     \[{{S}_{{{N}^{1}}}}\]reaction is most effective in \[{{3}^{o}}\] carbon. \[\underset{\text{tert}-\text{butyl}\,\text{chloride}({{3}^{o}})}{\mathop{C{{H}_{3}})-C-Cl}}\,\,\,\,\,\,\underset{1-\text{chlorobutane(}{{\text{1}}^{\text{o}}}\text{)}}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Cl}}\,\] \[\underset{2-\text{methyl}-1-\text{chloropropane(}{{\text{1}}^{\text{o}}}\text{)}}{\mathop{Cl-C{{H}_{2}}-CH(C{{H}_{3}})-C{{H}_{3}}}}\,\] \[\underset{2-\text{chlorobutane(}{{\text{2}}^{\text{o}}}\text{)}}{\mathop{C{{H}_{3}}C{{H}_{2}}CH(Cl)C{{H}_{3}}}}\,\]


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