JEE Main & Advanced Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank Preparation of alcohol Phenol and Ethers

  • question_answer
    Which one of the following will produce a primary alcohol by reacting with \[C{{H}_{3}}MgI\]      [MP PET 1991]

    A)                 Acetone              

    B)                 Methyl cyanide

    C)                 Ethylene oxide 

    D)                 Ethyl acetate

    Correct Answer: C

    Solution :

               \[\underset{\overset{\,}{\mathop{\overset{\backslash /}{\mathop{O}}\,}}\,\,\,\,}{\mathop{C{{H}_{2}}-C{{H}_{2}}}}\,+C{{H}_{3}}MgI\to \underset{C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,-\underset{OMgI}{\mathop{\underset{|\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,\to \]\[\underset{\text{Propyl alcohol}}{\mathop{\overset{{}}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-OH}}\,}}\,+Mg<\begin{matrix}    I\,\,\,  \\    OH  \\ \end{matrix}\]


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