MCQ
Silver acetylide when heated with $HCl$ gives
  • ${C_2}{H_2}$
  • B
    ${H_2}$
  • C
    ${C_2}{H_4}$
  • D
    None of these

Answer

Correct option: A.
${C_2}{H_2}$
a
(a) $Ag - C \equiv C - Ag + 2HCl \to CH \equiv CH + 2AgCl$

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Consider th following four reactions:

$(I)$ $\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - Cl} \\ 
  {\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,C{H_3}} 
\end{array}\xrightarrow[{5\% \,\,water}]{{95\% \,\,\,acetone}}\begin{array}{*{20}{c}}
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  | \\ 
  {\,\,\,\,\,\,C{H_3}} 
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$(II)$ $\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - Cl} \\ 
  {\,\,|} \\ 
  {\,\,\,\,\,\,C{H_3}} 
\end{array}\xrightarrow[{10\% \,\,water}]{{90\% \,\,\,acetone}}\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - OH} \\ 
  | \\ 
  {\,\,\,\,\,\,C{H_3}} 
\end{array}$

$(III)$ $\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - Cl} \\ 
  {\,\,|} \\ 
  {\,\,\,\,\,\,C{H_3}} 
\end{array}\xrightarrow[{20\% \,\,water}]{{80\% \,\,\,acetone}}\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - OH} \\ 
  | \\ 
  {\,\,\,\,\,\,C{H_3}} 
\end{array}$

$(IV)$ $\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - Cl} \\ 
  {\,\,|} \\ 
  {\,\,\,\,\,\,C{H_3}} 
\end{array}\xrightarrow{{100\% \,water}}\begin{array}{*{20}{c}}
  {{C_6}{H_5} - CH - OH} \\ 
  | \\ 
  {\,\,\,\,\,\,C{H_3}} 
\end{array}$

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