NEET Sample Paper NEET Sample Test Paper-39

  • question_answer
    In the following reaction, \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}Br\] \[\xrightarrow[2.{{H}_{3}}{{O}^{+}}]{1\,Mg.\,Ether}X,\]the product ?X? is

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

    B) \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OC{{H}_{2}}{{C}_{6}}{{H}_{5}}\]

    C) \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\]

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

    Correct Answer: D

    Solution :

     \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}Br+Mg\xrightarrow{ether}{{C}_{6}}{{H}_{5}}C{{H}_{2}}MgBr\](in ether as solution)
    \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}\] \[MgBr\xrightarrow{{{H}^{+}}}{{C}_{6}}{{H}_{5}}C{{H}_{3}}+MgBr(OH)\]
                H OH


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