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

  • question_answer
    The vapour of a carboxylic acid HA when passed over \[Mn{{O}_{2}}\] at 573 K yields propanone. The acid HA is

    A)                 Methanoic acid

    B)                 Ethanoic acid

    C)                 Propanoic acid  

    D)                 Butanoic acid

    Correct Answer: B

    Solution :

                    \[2C{{H}_{3}}COOH\underset{573K}{\mathop{\xrightarrow{MnO}}}\,C{{H}_{3}}COC{{H}_{3}}+C{{O}_{2}}+{{H}_{2}}O\]


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