What are the products when ethane reacts with chlorine under UV light?

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Multiple Choice

What are the products when ethane reacts with chlorine under UV light?

Explanation:
Under UV light, chlorine molecules split into chlorine radicals. A chlorine radical abstracts a hydrogen from ethane, giving hydrogen chloride and an ethyl radical. The ethyl radical then reacts with another Cl2 molecule to form chloroethane and regenerate the chlorine radical, continuing the chain. The overall first substitution is C2H6 + Cl2 → C2H5Cl + HCl. So the products are chloroethane and hydrogen chloride. If more chlorine is present and irradiation continues, further chlorination can occur to give dichloroethane, but the initial major product is chloroethane with HCl.

Under UV light, chlorine molecules split into chlorine radicals. A chlorine radical abstracts a hydrogen from ethane, giving hydrogen chloride and an ethyl radical. The ethyl radical then reacts with another Cl2 molecule to form chloroethane and regenerate the chlorine radical, continuing the chain. The overall first substitution is C2H6 + Cl2 → C2H5Cl + HCl. So the products are chloroethane and hydrogen chloride. If more chlorine is present and irradiation continues, further chlorination can occur to give dichloroethane, but the initial major product is chloroethane with HCl.

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