Question

What is the chief product obtained when `n-`butane is treated with `Br_(2)` in the presence of light at `130^(@)C`?
A. `CH_(3)CH_(2)CH_(2)CH_(2)Br`
B. `Ch_(3) CH_(2)CHBrunderset(CH_3)underset(|)CHBr`
C. `Ch_(3) -CH_(2) HBrunderset(CH_2Br)underset(|)CHBr`
D. `Ch_(3) -CH_(2) HBrunderset(CH_3)underset(|)CBr_(2)`

Answer 1

Correct Answer - B
The reaction proceeds via free radical mechanism and rate of abstraction of `2^(@)` hydrogen is faster
As `2^(@)` free radical is more stable tnan `1^(@)` , so `CH_(3) CH_(2) CH(Br)CH_(3) ` would be formed .