JEE Main & Advanced Chemistry Organic Chemistry: Some Basic Principles & Techniques Question Bank Classification and nomenclature of organic compounds

  • question_answer In the structure \[^{1}{{H}_{3}}C-\underset{C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{^{2}C-{{\,}^{3}}C{{H}_{2}}-{{\,}^{4}}C{{H}_{3}}}}\,}}\,}}\,}}\,\] Which one is quarternary carbon atom

    A) C - 1

    B) C - 2

    C) C - 3

    D) C - 5

    Correct Answer: B

    Solution :

    \[^{1}C{{H}_{3}}-{{\,}^{2}}\underset{\begin{smallmatrix}  | \\  \underset{6}{\mathop{C}}\,{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\, \end{smallmatrix}}{\overset{\begin{smallmatrix}  \overset{5}{\mathop{C}}\,{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\, \\  | \end{smallmatrix}}{\mathop{C-{{\,}^{3}}C{{H}_{2}}\,}}}\,-\,{}^{4}C{{H}_{3}}\] \[C-2\] is quaternary carbon because it is attached to 4 other carbon atoms.


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