NEET Sample Paper NEET Sample Test Paper-29

  • question_answer
    The most stable enolic form of 2, 4-pentanedione is :-

    A)  \[C{{H}_{2}}=\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H=C{{H}_{2}}\]

    B)  \[C{{H}_{3}}=\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,=C=\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,=C{{H}_{3}}\]

    C)  \[C{{H}_{2}}=\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,-C{{H}_{2}}\underset{O}{\mathop{-\underset{||}{\mathop{C}}\,}}\,=C{{H}_{3}}\]

    D)  \[C{{H}_{2}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,=CH-\underset{O}{\mathop{\underset{||}{\mathop{C}}\,}}\,-C{{H}_{3}}\]

    Correct Answer: D


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