JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2007

  • question_answer
        Acetyl bromide reacts with excess of\[C{{H}_{3}}MgI\] followed by treatment with a saturated solution of\[N{{H}_{4}}Cl\]gives

    A)  acetone

    B)  acetamide

    C)  2-methyl-2-propanol

    D)  acetyl iodide

    Correct Answer: C

    Solution :

                    \[C{{H}_{3}}-\overset{\begin{smallmatrix}  O \\  |\,\,| \end{smallmatrix}}{\mathop{C}}\,-Br+C{{H}_{3}}MgI\xrightarrow[{}]{{}}C{{H}_{3}}-\overset{\begin{smallmatrix}  O \\  |\,\,| \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\] \[C{{H}_{3}}-\overset{\begin{smallmatrix}  O \\  |\,\,| \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}+C{{H}_{3}}MgI\] \[\to C{{H}_{3}}-\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-OMgI\xrightarrow[{}]{aq.N{{H}_{4}}Cl}\underset{2-methyl-2-propanol}{\mathop{C{{H}_{3}}-\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-OH}}\,\]


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