b
\(2,4 -\) હેક્ઝાડાયોન પાસે સક્રિય મિથીલીન સમૂહ છે.જે બે ઇલેક્ટ્રોન વીથડ્રોઈંગ સમૂહો દ્વારા બન્ને તરફ છે. તેથી તેનો હાઇડ્રોજન સૌથી એસિડીક હોય છે.

\(\,\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C - C{H_2} - C - C{H_2}C{H_3}} 
\end{array}\)

       \(2, 4 -\) હેક્ઝાડાયોન

વધુમાં પ્રોટોન દૂર થયા બાદ બનતો કાર્બોનિયન પણ સસ્પંદન સ્થાયી છે.

\(\,\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C - C{H_2} - C - C{H_2}C{H_3}} 
\end{array}\,\xrightarrow{{ - {H^ + }}}\) \(\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C - \mathop C\limits^ \oplus  H - C - C{H_2}C{H_3}} 
\end{array}\,\)

\(\, \leftrightarrow \,\begin{array}{*{20}{c}}
  {{O^ - }\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C = CH - C - C{H_2}C{H_3}} 
\end{array} \leftrightarrow \) \(\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{O^ - }\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C - CH = C - C{H_2}C{H_3}} 
\end{array}\,\,\)