Which stage in the free radical substitution of methane by chlorine will have the lowest activation
energy?
A CH3• + Cl 2 → CH3Cl + Cl •
B Cl • + Cl • → Cl 2
C Cl • + CH4 → CH3• + HCl
D Cl 2 → Cl • + Cl •

Question

Which stage in the free radical substitution of methane by chlorine will have the lowest activation
energy?
A CH3• + Cl 2 → CH3Cl + Cl •
B Cl • + Cl • → Cl 2
C Cl • + CH4 → CH3• + HCl
D Cl 2 → Cl • + Cl •

abb0t · Answer

during the chain propagation step.

abb0t · Answer

You can eliminate D and B. You have options A and C.

abmon98 · Answer

the answer for your question is B because it doesnot involve any breaking of bonds its only two reactive free radicals joining together in a termination step.