Part A Radical Halogenation of Alkanes

Rapid or explosive evolution of heat resulting in HF and a wide variety of products 

(E) Describe the transformation in the reactions in Model 1. (What is replaced by what ) 

Fluorination of an alkane is dangerously fast. lodination is so slow as to be impractical. Only chlorination and bromination are commonly used in laboratories. 

Each reaction in Model 1 gives a mixture of products. Based on the percentage of each product, whatt5 e of H is MOST likely to be replaced with Br (Choose from [1° H], [2° H], or [3° H].) 

Explain how the data in Model 1 support this statement If there were an alkane with an equal number of 1° and 3 H s, Cl would be about five times more likely to replace a 3° H than a 1° H. Hint In 2,5-dimethylhexane how many more 1° H s are available for reaction compared to 3° H s ) 

---