MCQ
Structure of $(R)$ is
  • A
    $Ph - CH = CH- CH_3$

  • C
    $\begin{matrix}
       C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,  \\
       |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
       Ph-C=CH-C{{H}_{3}}  \\
    \end{matrix}$
  • D
    $\begin{matrix}
       \,\,\,\,\,\,\,C{{H}_{3}}  \\
       |  \\
       C{{H}_{3}}-C=C{{H}_{2}}  \\
    \end{matrix}$

Answer

Correct option: B.

b
$(b)$

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