Question

What type of reaction is shown below?
CH4+CI2 sunlight, CH₂Cl + HCl​

Answer 1

In the initiation step, Cl2 undergoes homolytic fission in sunlight to form Cl atoms, which have unpaired electrons thereby making them a very reactive species known as radicals. In the propagation steps, 1) the reactive Cl radical then collides with methane molecules to grab a H atom, forming HCl and a methyl radical.