JEE Main & Advanced Chemistry Carboxylic Acids Question Bank Preparation of Carboxylic Acids and Their Derivatives

  • question_answer
    The acid formed when propyl magnesium bromide is treated with carbon dioxide is [CPMT 1982, 84, 86; Pb. PMT 1998]

    A)                 \[{{C}_{3}}{{H}_{7}}COOH\]        

    B)                 \[{{C}_{2}}{{H}_{5}}COOH\]

    C)                 Both A and B     

    D)                 None of the above

    Correct Answer: A

    Solution :

               \[C{{O}_{2}}+{{C}_{3}}{{H}_{7}}MgBr\xrightarrow{\text{Hydrolysis}}\]\[\underset{\text{Butanoic acid}}{\mathop{{{C}_{3}}{{H}_{7}}COOH}}\,+Mg<\begin{matrix}    Br  \\    OH  \\ \end{matrix}\]


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