JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    If HCl is added over \[C{{H}_{2}}=C<\begin{matrix}    C{{H}_{3}}  \\    C{{H}_{3}}  \\ \end{matrix}\] then what is formed [CPMT 1996]

    A) \[\underset{Cl\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,=C<\begin{matrix}    C{{H}_{3}}  \\    C{{H}_{3}}  \\ \end{matrix}\]

    B) \[\underset{\,\,\,}{\mathop{\underset{\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,-CH<-\begin{matrix}    Cl  \\    C{{H}_{3}}  \\    C{{H}_{3}}  \\ \end{matrix}\]

    C) \[\]\[\underset{\,\,\,}{\mathop{\underset{\,\,\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,=C<\begin{matrix}    C{{H}_{3}}  \\    C{{H}_{2}}Cl  \\ \end{matrix}\]

    D) None of these

    Correct Answer: B

    Solution :

    \[C{{H}_{2}}=\underset{C{{H}_{3}}\,}{\mathop{\underset{|\,\,\,\,\,\,\,}{\mathop{C\,-}}\,C}}\,{{H}_{3}}+\overset{\,\,\,\,}{\mathop{HCl}}\,\to \underset{\begin{smallmatrix}  \text{2-chloro-2-methyl} \\  \,\,\,\,\,\,\,\,\,\,\,\,\text{propane} \end{smallmatrix}}{\mathop{C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{Cl\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,}{\overset{|\,\,\,\,\,}{\mathop{C\,\,-\,}}}\,}}}\,C{{H}_{3}}}}\,\]


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