How do you account for the formation of ethane during chlorination of methane?

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1. ADue to the addition of chlorine atoms to methane, leading to the substitution of hydrogen atoms by chlorine at
2. BEthane is formed as a byproduct of methane chlorination due to the high temperature and pressure conditions in
3. CDue to the rearrangement of carbon-carbon bonds in methane molecules during chlorination.
4. DDue to the side reaction in termination step by the combination of two •CH 3 free radicals.