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

  • question_answer
    The reaction of ethylene glycol with \[P{{I}_{3}}\]­gives [MP PMT 2000]

    A)                 \[IC{{H}_{2}}C{{H}_{2}}I\]            

    B)                 \[C{{H}_{2}}=C{{H}_{2}}\]

    C)                 \[C{{H}_{2}}=CHI\]         

    D)                 \[ICH=CHI\]

    Correct Answer: B

    Solution :

                    \[\underset{C{{H}_{2}}OH}{\mathop{\underset{|}{\mathop{C}}\,{{H}_{2}}OH}}\,\begin{matrix}    {}  \\    +  \\ \end{matrix}\begin{matrix}    {}  \\    P{{I}_{3}}  \\ \end{matrix}\begin{matrix}    {}  \\    \to   \\ \end{matrix}\underset{C{{H}_{2}}I}{\mathop{\underset{|}{\mathop{C}}\,{{H}_{2}}I}}\,\begin{matrix}    {}  \\    \xrightarrow[-{{I}_{2}}]{}  \\ \end{matrix}\begin{matrix}    {}  \\    C{{H}_{2}}=C{{H}_{2}}  \\ \end{matrix}\]


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