Which step is chain propagation step in the following mechanism?
$(i)$ $C l_{2} \overset{h v}{\to} C l^{\cdot} + C l^{\cdot}$
$(i i)$ $C l^{\cdot} + C H_{4} \to^{\cdot} C H_{3} + H C l$
$(i i i)$ $C l^{\cdot} + C l^{\cdot} \to C l_{2}$
$(i v)$ $^{\cdot} C H_{3} +^{\cdot} C l \to C H_{3} C l$

Question

TestHub · Accepted Answer

Photo chlorination of methane occurs in three steps i.e. initiation, propagation and termination. Chain propagating step is Cl ⋅ + CH 4 → C . H 3 + HCl .

Chemistry - Halogen Derivative Question with Solution | TestHub

Options:

Doubts & Discussion