MCQ
Which reactions are most common in alkenes
  • A
    Electrophilic substitution reactions
  • B
    Nucleophilic substitution reactions
  • Electrophilic addition reactions
  • D
    Nucleophilic addition reactions

Answer

Correct option: C.
Electrophilic addition reactions
c
(c) Electrophillic addition reactions are shown by alkenes or alkynes in these reactions attacking species is electrophiles

$C{H_3} - CH = C{H_2} + {H^ + } \xrightarrow{Slow} \mathop {C{H_3} - \mathop C\limits^ +  H - C{H_3}}\limits_{{2^o}{\rm{ carbonium ion}}} $

$C{H_3} - \mathop {{\text{ }}C}\limits^ +  H - C{H_3} + B{r^ - }\xrightarrow{{Fast}}$ $\mathop {\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{H_3}} \\ 
  {|\,\,\,\,} \\ 
  {\,Br\,\,\,} 
\end{array}}\limits_{2 - Bromopropane} $

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