$HC \equiv CH\mathop {\xrightarrow{{30\%\, {H_2}S{O_4}}}}\limits_{HgS{O_4}} A\xrightarrow{{NaOH}}B$

$\mathop {\begin{array}{*{20}{c}}
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\ 
  {C{H_2} = C - C{H_2} - C - C{H_3}} 
\end{array}}\limits_{(I)}  \rightleftharpoons $

$\mathop {\begin{array}{*{20}{c}}
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\ 
  {C{H_3} - C - C{H_2} - C - C{H_3}} 
\end{array}}\limits_{(II)}  \rightleftharpoons $

$\mathop {\begin{array}{*{20}{c}}
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\ 
  {C{H_3} - C = CH - C - C{H_3}} 
\end{array}}\limits_{(III)} $

$2PhCHO \xrightarrow{{:\mathop O\limits^ \ominus  H}}PhC{H_2}OH + PhC\mathop {O_2^ \ominus }\limits^{.\,\,.\,\,} $

ધીમો તબબકો  :

$C{H_2} = C{H_2}\xrightarrow{{{O_2}/Ag}}X\xrightarrow{{473\,{\kern 1pt} K}}Y$

ઉપરોક્ત પ્રકિયા માં વપરાયેલો પ્રકિયક $P, Q$ અને શું હશે ?

$\mathop {(A)}\limits_{ gives\,\,positive ~\\ iodoform\,Test }  \xrightarrow[\begin{subarray}{l} (ii)\,{H^ + },{H_2}O +  ~\\ (iii)\,conc.\,{H_2}S{O_4}/\Delta \end{subarray} ]{{{\text{(i) C}}{{\text{H}}_{\text{3}}}{\text{MgBr}}}}(B)\xrightarrow{{{O_3}/Zn,{H_2}O}}$