MCQ
In which reaction last product is $Ph -C \equiv CH$ ?
- A$\begin{matrix}
\,\,\,\,\,\,Br \\
\,\,\,| \\
{{C}_{6}}{{H}_{5}}-C-C{{H}_{3}} \\
\,\,\,| \\
\,\,\,\,\,Br \\
\end{matrix}\xrightarrow[Mineral\,\,oil,heat]{2NaN{{H}_{2}}}\xrightarrow{N{{H}_{4}}Cl}$ - B${{C}_{6}}{{H}_{5}}CH=C{{H}_{2}}\xrightarrow[CC{{l}_{4}}]{B{{r}_{2}}}\xrightarrow[Mineral\,\,oil,heat]{3NaN{{H}_{2}}}\xrightarrow{N{{H}_{4}}Cl}$
- C$\begin{array}{*{20}{c}}
{\,\,\,\,O} \\
{\,\,\,||} \\
{{C_6}{H_5} - C - C{H_3}}
\end{array}\xrightarrow{{PC{l_5}}}\xrightarrow[{\min eral\,oil,\,heat}]{{3NaN{H_2}}}\xrightarrow{{N{H_4}Cl}}$ - ✓All
