JEE Main & Advanced Sample Paper JEE Main Sample Paper-44

  • question_answer
    The compound which may exhibit tautomerism is
    (I) (II)
    (III)   (IV) \[C{{H}_{3}}-CH=CH-CHO\]
     

    A)  I, II and III                  

    B)  II, III and IV        

    C)  I and III                      

    D)  I, II, III and IV

    Correct Answer: D

    Solution :

        \[C{{H}_{3}}-CH=CH-CHO\,\,\] \[C{{H}_{2}}=CH-CH=\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{C}}\,H\]


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