Alkanes take part in a substitution reaction with chlorine. Which row identifies two statements that are correct about the reaction of alkanes with chlorine?
- Aa carbon atom is replaced by a chlorine atom; the reaction requires thermal energy
- Ba hydrogen atom is replaced by a chlorine atom; the reaction requires thermal energy
- Ca carbon atom is replaced by a chlorine atom; the reaction requires ultraviolet light
- Da hydrogen atom is replaced by a chlorine atom; the reaction requires ultraviolet light