1
CHEM 3361/02 EXAM V Fall 2024 TOTAL POINTS 105
TURN IN ONLY THE FREE RESPONSE ANSWER SHEET AND THE BUBBLE SHEET. Keep this exam.
Record the following Version on the bubble sheet: A
Part I. Multiple Choice. Record your answers on the bubble sheet. (85.5pts, 4.5pts/ea.)
For Problems 1-9, consider the following mechanism steps in the radical-chain bromination of
propane. Some bond energies are given to you below in kcal/mole.
CH3CH2CH2--H
(CH3)2CH--H
CH3CH2CH2--Br
(CH3)2CH--Br
H--Br
Br--Br
98
94
69
68
87
46
1. Which of the above represents a termination step?
A. I B. II C. III D. IV E. V
2. Which of the above represents the rate-determining step leading to the major product of
monobromination of propane?
A. I B. II C. III D. IV E. V
3. Which of the above represents a step leading to polyhalogenation?
A. I B. II C. III D. IV E. V
