RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

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

    A)  3-ethyl-4-methyl hexane

    B)  3-ethyl-3-methyl heptane

    C)  5-methyl-5-ethyl heptane

    D)  2-butyl-2-ethyl butane

    Correct Answer: B

    Solution :

     \[\underset{3-ethyl-3-methyl\text{ }heptane}{\mathop{\overset{1}{\mathop{C}}\,{{H}_{3}}-\overset{2}{\mathop{C}}\,{{H}_{2}}-\underset{\begin{smallmatrix}  | \\  \underset{4}{\mathop{C}}\,{{H}_{2}}-\underset{5}{\mathop{C}}\,{{H}_{2}}-\underset{6}{\mathop{C}}\,{{H}_{2}}-\underset{7}{\mathop{C}}\,{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{2}}-C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}}}\,\]


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