RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    The compound obtained by the reaction of \[C{{H}_{3}}\text{ }Mg\text{ }Br\]with formaldehyde is:

    A)  \[C{{H}_{3}}COOH\]   

    B)  \[C{{H}_{3}}C{{H}_{2}}OH\]

    C)  \[C{{H}_{3}}CHO\]    

    D)  \[HCOOH\]

    Correct Answer: B

    Solution :

    \[H-\underset{H}{\mathop{\underset{|}{\mathop{C}}\,}}\,=O+C{{H}_{3}}Mg\,Br\xrightarrow{{}}\] \[H-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-Mg\,OBr\xrightarrow{H.\,OH/{{H}^{+}}}\]                 \[C{{H}_{3}}C{{H}_{2}}OH+Mg(OH)Br\]


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