Haloalkanes And Haloarenes Self Evaluation Test Haloalkanes And Haloarenes Question 11

Question: The chief reaction product of reaction between n-butane and bromine at 573K is:

Options:

A) $ CH_3CH_2CH_2CH_2Br $

B) $ CH_3CH_2\underset{CH_3}{\mathop{\underset{|}{\mathop{C}},}},HBr $

C) $ CH_3-CH_2\underset{CH_2Br}{\mathop{\underset{|}{\mathop{C}},}},HBr $

D) $ CH_3CH_2\underset{CH_3}{\mathop{\underset{|}{\mathop{C}},}},Br $

Answer:

Correct Answer: B

Solution:

[b] The reaction proceeds via free radical mechanism. As $ 2{}^\circ $ free radical is more stable than $ 1{}^\circ $ , so $ CH_3CH_2CH(Br)CH_3 $ would be formed.