CMC Medical CMC-Medical Ludhiana Solved Paper-2010

  • question_answer
    The reactivities of\[C{{H}_{3}}Cl,\]\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl\]and \[{{C}_{6}}{{H}_{5}}Cl\]are in the order

    A)  \[C{{H}_{3}}Cl>C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl>{{C}_{6}}{{H}_{5}}Cl\]

    B)  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl>C{{H}_{3}}Cl>{{C}_{6}}{{H}_{5}}Cl\]

    C)  \[{{C}_{6}}{{H}_{5}}Cl>C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl>C{{H}_{3}}Cl\]

    D)  \[C{{H}_{3}}Cl>{{C}_{6}}{{H}_{5}}Cl>C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl\]

    Correct Answer: A

    Solution :

                    Bulky groups cause steric hinderance in the formation of transition state. Therefore, higher homologues are less reactive than lower homologues.


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