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9. Hydricarbon — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry9. Hydricarbon1 Mark
MCQ
Acetylene can be prepared from
  • A
    Potassium fumarate
  • B
    Calcium carbide
  • C
    Ethylene bromide
  • ✓
    All of these
✓

Answer

Correct option: D.
All of these
d
(d) $\begin{array}{*{20}{l}}
  {CH - COOK} \\ 
  {|\,|\,|} \\ 
  {CH - COOK} 
\end{array}\, + 2\,{H_2}O\xrightarrow{{{\text{Electrolyisis}}}}$

$\begin{array}{*{20}{l}}
  {CH} \\ 
  {|\,|\,|} \\ 
  {\underbrace {CH}_{Anode}} 
\end{array} + 2\,C{O_2} + 2\,KOH + \underbrace {{H_2}}_{{\text{Cathode}}}$

$Ca{C_2} + 2\,{H_2}O \to Ca{\left( {OH} \right)_2} + CH \equiv CH$

$\,\mathop {\mathop {C{H_2}}\limits_{|\,\,\,\,\,\,\,\,\,} }\limits_{Br\,\,\,\,\,}  - \mathop {C{H_2}}\limits_{\mathop {|\,\,\,\,\,\,\,\,\,}\limits_{Br\,\,\,\,} }  + 2\,KOH \to CH \equiv CH + 2\,KBr + 2\,{H_2}O$

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