JEE Main & Advanced JEE Main Paper (Held On 9 April 2016)

  • question_answer
    The hydrocarbon with seven carbon atoms containing a neopentyl and a vinyl group is :   JEE Main Online Paper (Held On 09 April 2016)

    A) 4,4-dimethylpentene

    B) 2,2-dimethyl-4-pentene

    C) Isopropyl-2-butene

    D) 2,2-dimethyl-3-pentene

    Correct Answer: A

    Solution :

    Sol.         \[\left[ \underset{5}{\mathop{C}}\,{{H}_{3}}-\underset{\begin{smallmatrix}  {{|}_{4}} \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-\underset{3}{\mathop{C}}\,{{H}_{2}}-\underset{2}{\mathop{C}}\,H=\underset{1}{\mathop{C}}\,{{H}_{2}} \right]\]has seven carbon atoms containing a neopentyl and a vinyl group.


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