CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2010

  • question_answer
    \[C{{H}_{3}}C{{H}_{2}}Br\xrightarrow[\Delta ]{aq.\,KOH}a=\xrightarrow[\Delta ]{KMn{{O}_{4}}/{{H}^{+}}}\]\[B\xrightarrow[\Delta ]{N{{H}_{3}}}C\xrightarrow[alkali]{B{{r}_{2}}}D,'D'\] is

    A) \[C{{H}_{3}}Br\]                               

    B) \[C{{H}_{3}}COON{{H}_{2}}\]

    C) \[C{{H}_{3}}N{{H}_{2}}\]                              

    D) \[CHB{{r}_{3}}\]

    Correct Answer: C

    Solution :

    \[C{{H}_{3}}C{{H}_{2}}Br\xrightarrow[\Delta ]{aq\,.\,\,KOH}C{{H}_{3}}C{{H}_{2}}OH\xrightarrow[\Delta ]{KMn{{O}_{4}}/{{H}^{+}}}\]\[\underset{\begin{smallmatrix}  acetic\,\,acid \\  (B) \end{smallmatrix}}{\mathop{C{{H}_{3}}COOH}}\,\xrightarrow{N{{H}_{3}}}C{{H}_{3}}COON{{H}_{4}}\xrightarrow{\Delta }\underset{\begin{smallmatrix}  acetamide \\  (C) \end{smallmatrix}}{\mathop{C{{H}_{3}}CON{{H}_{2}}}}\,\]                                     \[\xrightarrow{B{{r}_{2}}/akali}\underset{\begin{smallmatrix}  methyl\,\,a\min e \\  (D) \end{smallmatrix}}{\mathop{C{{H}_{3}}N{{H}_{2}}}}\,\]


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