NEET Sample Paper NEET Sample Test Paper-8

  • 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 :

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


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