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JCECE Engineering JCECE Engineering Solved Paper-2003

  • question_answer
    \[IUPAC\] name of the compound is: \[H-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}-C{{H}_{2}}-COOH\]

    A)  3-oxo-butanoic acid

    B)  4-oxo-propanoic acid

    C)  3-formyl-propanoic acid

    D)  none of the above

    Correct Answer: C

    Solution :

    Key Idea: If the organic compound has two groups having \[C\] atom placed at ends of carbon chain, only the carbon of group of higher priority is included in chain.                 \[\underset{3formyl\,\,propanoic\,\,acid}{\mathop{H-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-\overset{3}{\mathop{C}}\,{{H}_{2}}-\overset{2}{\mathop{C}}\,{{H}_{2}}-\overset{1}{\mathop{C}}\,OOH}}\,\]


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