RAJASTHAN ­ PET Rajasthan PET Solved Paper-2001

  • question_answer
    \[C{{H}_{3}}-Mg-X+H-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-H\xrightarrow[{}]{{}}X\xrightarrow[{}]{{{H}_{2}}O}Y\] Product is

    A)  \[{{C}_{2}}{{H}_{5}}OH\]

    B)  \[C{{H}_{3}}CHO\]

    C)  \[C{{H}_{3}}COOH\]

    D)  \[C{{H}_{3}}-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-O-{{C}_{2}}{{H}_{5}}\]

    Correct Answer: A

    Solution :

     \[C{{H}_{3}}-Mg-X+H-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-H\xrightarrow[{}]{{}}\] \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  OMgX \end{smallmatrix}}{\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{C}}}\,-H\xrightarrow[{}]{{{H}_{2}}O}\underset{\begin{smallmatrix}  primary \\  alcohol \end{smallmatrix}}{\mathop{C{{H}_{3}}C{{H}_{2}}OH}}\,\]


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