JEE Main & Advanced Chemistry GOC Question Bank Structural and stereo isomerism

  • question_answer Ethyl acetoacetate shows, which type of isomerism [Pb. CET 2003]

    A) Chain

    B) Optical

    C) Metamerism

    D) Tautomerism

    Correct Answer: D

    Solution :

     \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\] Shows tautomeric isomerism. \[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-O-C{{H}_{2}}-C{{H}_{3}}\] ⇌ \[C{{H}_{2}}=\overset{OH\ }{\mathop{\overset{|}{\mathop{C}}\,-O}}\,{{C}_{2}}{{H}_{5}}\]

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