JIPMER Jipmer Medical Solved Paper-1998

  • question_answer
    Which is the correct structure of the product formed, when acetic acid is treated with thionyl chloride?

    A)  \[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-O-\underset{O}{\mathop{\underset{||}{\mathop{S}}\,}}\,-Cl\]

    B)  \[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-Cl\]

    C)  \[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OCl\]

    D)  \[ClC{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-O-\overset{O}{\mathop{\overset{||}{\mathop{S}}\,}}\,-Cl\]

    Correct Answer: B

    Solution :

    Acetyl chloride is formed when, acetic acid is heated with thionyl chloride. \[C{{H}_{3}}--\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,--OH+SOC{{l}_{2}}\xrightarrow[Pyridine]{\Delta }\] \[C{{H}_{3}}--\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,--Cl+S{{O}_{2}}+HCl\]


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