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

  • question_answer
    Formaldehyde gives an additive product with methyl magnesium iodide which on aqueous hydrolysis gives [MP PMT/PET 1988]

    A)                 Isopropyl alcohol             

    B)                 Ethyl alcohol

    C)                 Methyl alcohol 

    D)                 Propyl alcohol

    Correct Answer: B

    Solution :

               \[\begin{matrix}    H  \\    H  \\ \end{matrix}>C=O\xrightarrow{C{{H}_{3}}MgI}\underset{C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,-O-MgI\xrightarrow{\text{Hydrolysis}}\]                                                 \[C{{H}_{3}}-C{{H}_{2}}-OH+Mg<\begin{matrix}    I\,\,\,  \\    OH  \\ \end{matrix}\]


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