CHEMISTRY 2202 SPRING 2025 (2/20/25) Dr. S. Jasmin
EXAM #1 – ANSWER KEY
NAME (please print):_____________________________________ TEMPLE ID #:_____________________________
TEST CODE:__01__
Read each question very carefully before writing and/or choosing your answer. This examination contains
two parts (PART I and PART II) worth a total of 100 pts. Part I consists of 25 questions (multiple
choices). Your score will be adjusted out of 200 pts on the Canvas gradebook. Enough space has been
provided for you to answer the questions in Part II. Your answer to Part II must be legible and all work
must be shown to receive full or partial credit. PLEASE DO NOT WRITE YOUR NAME OR
INITIALS BEYOND THIS PAGE.
PART I SCORE:_____________
PART II SCORE: _____________
TOTAL SCORE: _____________
ATTENTION: If you are caught cheating and having the following in your possession:
notes, cell phone, iPad, tablet, smart watches, and any electronic devices, which you do not
need for the exam, you will be given a “0” for the exam. Additionally, you will be reported
for Academic Dishonesty to the University.
, PART I (50 PTS)
1. Which statement is NOT true about the Diels-Alder reaction?
(a) It is a [4+2] cycloaddition reaction.
(b) The diene must be in the s-cis conformation to react.
(c) Most Diels-Alder reactions are reversible.
(d) Electron donating groups on the diene and electron withdrawing groups on the dienophile favor
product formation.
(e) The intermediate formed is unstable.
2. What is the major difference between an antiaromatic and aromatic compound?
(a) Aromatic compounds cannot have a charged atom in the structure
(b) Antiaromatic compounds have at least one sp3 hybridized atom in the ring
(c) Antiaromatic compounds can assume a chair-like structure while aromatic compounds are nearly
flat
(d) The structure must be cyclic for aromatic but not antiaromatic compounds?
(e) Only aromatic compounds follow Huckle's rule.
3. Which of the following would not react with the compound shown?
N2 Cl
(a) CuI (b) CuCN (c) AlCl3 (d) CuBr (e) HBF4
4. Which one of the following dienophiles is least reactive in the Diels-Alder reaction?
5. What is the hybridization of the central carbon of allene (1,2-propadiene)?
3
(a) p (b) sp (c) sp (d) sp2 (e) cannot be determined
EXAM #1 – ANSWER KEY
NAME (please print):_____________________________________ TEMPLE ID #:_____________________________
TEST CODE:__01__
Read each question very carefully before writing and/or choosing your answer. This examination contains
two parts (PART I and PART II) worth a total of 100 pts. Part I consists of 25 questions (multiple
choices). Your score will be adjusted out of 200 pts on the Canvas gradebook. Enough space has been
provided for you to answer the questions in Part II. Your answer to Part II must be legible and all work
must be shown to receive full or partial credit. PLEASE DO NOT WRITE YOUR NAME OR
INITIALS BEYOND THIS PAGE.
PART I SCORE:_____________
PART II SCORE: _____________
TOTAL SCORE: _____________
ATTENTION: If you are caught cheating and having the following in your possession:
notes, cell phone, iPad, tablet, smart watches, and any electronic devices, which you do not
need for the exam, you will be given a “0” for the exam. Additionally, you will be reported
for Academic Dishonesty to the University.
, PART I (50 PTS)
1. Which statement is NOT true about the Diels-Alder reaction?
(a) It is a [4+2] cycloaddition reaction.
(b) The diene must be in the s-cis conformation to react.
(c) Most Diels-Alder reactions are reversible.
(d) Electron donating groups on the diene and electron withdrawing groups on the dienophile favor
product formation.
(e) The intermediate formed is unstable.
2. What is the major difference between an antiaromatic and aromatic compound?
(a) Aromatic compounds cannot have a charged atom in the structure
(b) Antiaromatic compounds have at least one sp3 hybridized atom in the ring
(c) Antiaromatic compounds can assume a chair-like structure while aromatic compounds are nearly
flat
(d) The structure must be cyclic for aromatic but not antiaromatic compounds?
(e) Only aromatic compounds follow Huckle's rule.
3. Which of the following would not react with the compound shown?
N2 Cl
(a) CuI (b) CuCN (c) AlCl3 (d) CuBr (e) HBF4
4. Which one of the following dienophiles is least reactive in the Diels-Alder reaction?
5. What is the hybridization of the central carbon of allene (1,2-propadiene)?
3
(a) p (b) sp (c) sp (d) sp2 (e) cannot be determined
