BCECE Medical BCECE Medical Solved Papers-2004

  • question_answer
    Write the IUPAC name of: \[C{{H}_{3}}-C{{H}_{2}}-\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]

    A)  3- methylpentane-3-ol

    B)  3-hydroxyhexane

    C)  3-hydroxy-3-methyl pentane

    D)  all of the above

    Correct Answer: A

    Solution :

    \[\underset{3-methyl\text{ }pentan\text{ }3-ol}{\mathop{\overset{5}{\mathop{C{{H}_{3}}}}\,-\overset{4}{\mathop{C{{H}_{2}}}}\,-\overset{\begin{smallmatrix}  OH \\  3| \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-\overset{2}{\mathop{C{{H}_{2}}}}\,\overset{1}{\mathop{C{{H}_{3}}}}\,}}\,\] Hydroxy is used when \[-OH\] group is written in prefix. So, choice [b] and [c] are wrong.


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