CHEM 219
PRINCIPLES OF ORGANIC CHEMISTRY
FINAL 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-Level Rationales (Portage CHEM 219 – 2025 Ready)
1/7
,1. Classify the following organic molecule in terms of:
i) The type of hydrocarbon skeleton (aliphatic or aromatic)
ii) The configuration of the hydrocarbon skeleton (linear, branched, or cyclic)
iii) The type of functional group(s) present - name all the groups present (include
subclassification of 1°, 2°, 3° when appropriate).
You are not being asked to generate the IUPAC name of the molecule, only to state what
functional groups are present
Answer
i) Aromatic
ii) Cyclic
iii) Amide
Expert-Level Rationale (Portage CHEM 219 – 2025 Ready)
• Amides are crucial carboxylic acid derivatives, and this one is stabilized by resonance
between the nitrogen and the carbonyl oxygen.
• The secondary amide classification is essential for predicting hydrogen bonding potential
and reactivity.
• The aromatic ring affects the molecule’s electron distribution, making the carbonyl less
electrophilic than in aliphatic amides.
2. Classify the following organic molecule in terms of:
i) The type of hydrocarbon skeleton (aliphatic or aromatic)
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, ii) The configuration of the hydrocarbon skeleton (linear, branched, or cyclic)
iii) The type of functional group(s) present - name all the groups present (include
subclassification of 1°, 2°, 3° when appropriate).
You are not being asked to generate the IUPAC name of the molecule, only to state what
functional groups are present
Answer
i. Aliphatic
ii. Linear
iii. 1° Alkyl Halide
Expert-Level Rationale (Portage CHEM 219 – 2025 Ready)
• Aliphatic hydrocarbons are open-chain compounds, either straight or branched, that are
non-aromatic. This chain has no π systems or rings, thus strictly aliphatic.
• The chlorine atom bonded to a terminal methyl (CH₂) group indicates it's a primary alkyl
halide, a category of haloalkanes important in nucleophilic substitution (Sn1/Sn2) and
elimination reactions.
• The linear configuration contributes to the steric accessibility, favoring Sn2 reactions,
especially in primary halides.
3. Classify the following organic molecule in terms of:
i) The type of hydrocarbon skeleton (aliphatic or aromatic)
3/7
PRINCIPLES OF ORGANIC CHEMISTRY
FINAL 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-Level Rationales (Portage CHEM 219 – 2025 Ready)
1/7
,1. Classify the following organic molecule in terms of:
i) The type of hydrocarbon skeleton (aliphatic or aromatic)
ii) The configuration of the hydrocarbon skeleton (linear, branched, or cyclic)
iii) The type of functional group(s) present - name all the groups present (include
subclassification of 1°, 2°, 3° when appropriate).
You are not being asked to generate the IUPAC name of the molecule, only to state what
functional groups are present
Answer
i) Aromatic
ii) Cyclic
iii) Amide
Expert-Level Rationale (Portage CHEM 219 – 2025 Ready)
• Amides are crucial carboxylic acid derivatives, and this one is stabilized by resonance
between the nitrogen and the carbonyl oxygen.
• The secondary amide classification is essential for predicting hydrogen bonding potential
and reactivity.
• The aromatic ring affects the molecule’s electron distribution, making the carbonyl less
electrophilic than in aliphatic amides.
2. Classify the following organic molecule in terms of:
i) The type of hydrocarbon skeleton (aliphatic or aromatic)
2/7
, ii) The configuration of the hydrocarbon skeleton (linear, branched, or cyclic)
iii) The type of functional group(s) present - name all the groups present (include
subclassification of 1°, 2°, 3° when appropriate).
You are not being asked to generate the IUPAC name of the molecule, only to state what
functional groups are present
Answer
i. Aliphatic
ii. Linear
iii. 1° Alkyl Halide
Expert-Level Rationale (Portage CHEM 219 – 2025 Ready)
• Aliphatic hydrocarbons are open-chain compounds, either straight or branched, that are
non-aromatic. This chain has no π systems or rings, thus strictly aliphatic.
• The chlorine atom bonded to a terminal methyl (CH₂) group indicates it's a primary alkyl
halide, a category of haloalkanes important in nucleophilic substitution (Sn1/Sn2) and
elimination reactions.
• The linear configuration contributes to the steric accessibility, favoring Sn2 reactions,
especially in primary halides.
3. Classify the following organic molecule in terms of:
i) The type of hydrocarbon skeleton (aliphatic or aromatic)
3/7
