Question

Which of the following intermediate is formed, due to heterolytic cleavage of $C-Cl$ bond in $C{H}_{3}Cl$ molecule ?

• A. $\stackrel{\bullet }{C}{H}_3$ and $\stackrel{\bullet }{C}l$
• B. $\stackrel{+}{C}{H}_3$ and $C{l}^{-}$
• C. $\stackrel{\bullet }{C}{H}_3$ and $C{l}^{-}$
• D. $\stackrel{-}{C}{H}_3$ and $C{l}^{+}$

Answer 1

The correct option is B $\stackrel{+}{C}{H}_3$ and $C{l}^{-}$

Heterolytic Bond Cleavage:


The bond breaks in such a manner so that the shared pair of electrons remain with one of the fragments.

Electrons will remain with the more electronegative fragment (here chlorine)
$\stackrel{+}{C}{H}_3$ is called methyl carbocation.
Species having a carbon atom possessing sextet of electrons and a positive charge is called a carbocation