
\(\begin{matrix}
C{{H}_{3}}-CH-{{(C{{H}_{2}})}_{3}}-CHO\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{O}_{2}}H\,\,\,\,\,\,\,\,\,\,(A) \\
\end{matrix}\,\,\,\,\begin{matrix}
C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-CHO \\
(B) \\
\end{matrix}\)

$(1) \,Cl_2 \to 2Cl^\bullet $
$(2)\, Cl^\bullet + CH_4 \to CH_3Cl + H^\bullet $
$(3)\, Cl^\bullet +CH_4 \to CH^\bullet _3 + HCl$
$(4)\, H^\bullet +Cl_2 \to HCl + Cl^\bullet $
$(5)\, CH^\bullet _3 + Cl_2 \to CH_3Cl + Cl^\bullet $

