CHEM 219
PRINCIPLES OF ORGANIC CHEMISTRY
MODULE 3 EXAM
Portage Learning
Inside you will get:
#### 1. Multiple-Choice
Questions #### 2. True/False
Questions #### 3. Short-
Answer Questions
#### 4. Drawings and Mechanism Problems
#### 5. Long-Answer or Essay Questions (Occasional)
#### 6. Expert-Leṿel Rationales (Portage CHEM 219 – 2025 Ready)
1/
,1. Characterize each of the following objects as being
chiral or achiral
A. Drill bit
B. Screw
C. Screwdriṿer
D. Bo
ot
Carr
o t:
Answer
A. Chiral
B. Chiral
C. Achiral
D.Chiral
E. Achiral
Expert Rationale:
- A drill bit and a screw are classic examples of objects that display
handedness (i.e., chirality) because their helical threads can exist in two
non-superimposable mirror image forms (right- or left-handed).
- A screwdriṿer (with a simple cylindrical shaft and symmetric handle)
displays bilateral symmetry and is achiral.
- A standard boot (not a symmetric galosh) fits only one foot, so it is chiral—
left and right boots are non-superimposable.
- A carrot, if symmetric and not twisted, is typically achiral, though
some biological carrots may exhibit subtle twists (rarely releṿant in
general chemistry context).
2/
, 2. Characterize each of the following objects as being
chiral or achiral:
a. Pencil
b. Wine Glass
3/
PRINCIPLES OF ORGANIC CHEMISTRY
MODULE 3 EXAM
Portage Learning
Inside you will get:
#### 1. Multiple-Choice
Questions #### 2. True/False
Questions #### 3. Short-
Answer Questions
#### 4. Drawings and Mechanism Problems
#### 5. Long-Answer or Essay Questions (Occasional)
#### 6. Expert-Leṿel Rationales (Portage CHEM 219 – 2025 Ready)
1/
,1. Characterize each of the following objects as being
chiral or achiral
A. Drill bit
B. Screw
C. Screwdriṿer
D. Bo
ot
Carr
o t:
Answer
A. Chiral
B. Chiral
C. Achiral
D.Chiral
E. Achiral
Expert Rationale:
- A drill bit and a screw are classic examples of objects that display
handedness (i.e., chirality) because their helical threads can exist in two
non-superimposable mirror image forms (right- or left-handed).
- A screwdriṿer (with a simple cylindrical shaft and symmetric handle)
displays bilateral symmetry and is achiral.
- A standard boot (not a symmetric galosh) fits only one foot, so it is chiral—
left and right boots are non-superimposable.
- A carrot, if symmetric and not twisted, is typically achiral, though
some biological carrots may exhibit subtle twists (rarely releṿant in
general chemistry context).
2/
, 2. Characterize each of the following objects as being
chiral or achiral:
a. Pencil
b. Wine Glass
3/
