JEE Main & Advanced Chemistry GOC Question Bank Structural and stereo isomerism

  • question_answer The following compound can exhibits \[\begin{matrix}    C{{H}_{3}}  \\    C{{H}_{3}}  \\ \end{matrix}>\underset{\begin{smallmatrix}   \\  \ \ C{{H}_{3}} \end{smallmatrix}}{\mathop{C=C}}\,\underset{\cancel{\,\,\,\,\,\,\,\,\,\,}}{\overset{{}}{\mathop{<}}}\,\begin{matrix}    H  \\    C<  \\ \end{matrix}\begin{matrix}    \underset{H\ \ \ \ \ \,}{\mathop{{}}}\,  \\    \underset{COOH}{\mathop{{}}}\,  \\ \end{matrix}\] [IIT-JEE 1995; DCE 2000]

    A) Tautomerism

    B) Optical isomerism

    C) Geometrical isomerism

    D) Geometrical and optical isomerisms

    Correct Answer: B

    Solution :

      Optical isomerism because chiral centre is present \[{{(C{{H}_{3}})}_{2}}-C=CH-\underset{C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\overset{H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{{{C}^{*}}\,-\,COOH}}}\,}}}\,\].

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