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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2010

  • question_answer
    \[C{{H}_{3}}COOH\xrightarrow[{}]{B{{r}_{2}}/P}Y\xrightarrow[(ii)\,{{H}_{3}}{{O}^{+}}]{(i)\,KCN}X\] Here,\[X\]is

    A)  glycollic acid

    B) \[\alpha -\]hydroxy propionic acid

    C)  succinic acid

    D)  malonic acid

    Correct Answer: D

    Solution :

     \[C{{H}_{3}}COOH\xrightarrow[{}]{B{{r}_{2}}/P}\underset{'Y'}{\mathop{BrC{{H}_{2}}-COOH}}\,\] \[\xrightarrow[{}]{KCN(alc)}NC-C{{H}_{2}}COOH\] \[\xrightarrow[{}]{{{H}_{3}}{{O}^{+}}}\underset{\begin{smallmatrix}  malonic\text{ }acid \\  \,\,\,\,\,\,\,\,\,\,\,'X' \end{smallmatrix}}{\mathop{HOOC-C{{H}_{2}}-COOH}}\,\]


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