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9. Hydricarbon — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry9. Hydricarbon1 Mark
MCQ
$C{{H}_{3}}-C\equiv C-C{{H}_{3}}\xrightarrow{Cold\,\,KMn{{O}_{4}}}(A)$

Product $(A)$ is

  • A
    $\begin{array}{*{20}{c}}
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,O} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,||} \\ 
      {C{H_3} - C{H_2} - C - C - H} 
    \end{array}$
  • ✓
    $\begin{matrix}
       O\,\,\,\,O  \\
       ||\,\,\,\,\,\,\,||  \\
       C{{H}_{3}}-C-C-C{{H}_{3}}  \\
    \end{matrix}$
  • C
    $\begin{matrix}
       \,\,\,OH\,\,\,\,\,OH  \\
       |\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,  \\
       C{{H}_{3}}-CH-CH-C{{H}_{3}}  \\
    \end{matrix}$
  • D
    $O = CH - CH_2 - CH_2CH = O$
✓

Answer

Correct option: B.
$\begin{matrix}
   O\,\,\,\,O  \\
   ||\,\,\,\,\,\,\,||  \\
   C{{H}_{3}}-C-C-C{{H}_{3}}  \\
\end{matrix}$
b
$\begin{matrix}
   \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,O  \\
   \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,||  \\
   C{{H}_{3}}-C\equiv C-C{{H}_{3}}\xrightarrow{Cold\,KMn{{O}_{4}}}\,C{{H}_{3}}-C-C-C{{H}_{3}}  \\
\end{matrix}$

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