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

  • question_answer
    A carboxylic acid is converted into its anhydride using [J & K 2005]

    A)                 Thionyl chloride               

    B)                 Sulphur chloride

    C)                 Sulphuric acid   

    D)                 Phosphorus pent oxide

    Correct Answer: D

    Solution :

               \[\begin{matrix}    RCOOH  \\    RCOOH  \\ \end{matrix}\xrightarrow{{{P}_{2}}{{O}_{5}}}\begin{matrix}    RCO  \\    RCO  \\ \end{matrix}>O+{{H}_{2}}O\]                 \[{{P}_{2}}{{O}_{5}}\] acts as a dehydrating agent.


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