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Portage Learning Chem 219 – Module 1 Exam Principles
of Organic Chemistry | Questions and Answers [Verified
Answers] Plus Rationales | Latest 2026/27
ATOMIC STRUCTURE & BONDING
1.
Carbon has how many valence electrons?
A. 2
B. 3
C. 4
D. 6
Answer: C
Rationale: Carbon is in Group 14 → 4 valence electrons.
2.
Which type of bond involves sharing electrons?
A. Ionic
B. Covalent
C. Metallic
D. Hydrogen
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Answer: B
Rationale: Covalent bonds share electron pairs.
3.
A single covalent bond consists of:
A. Two sigma bonds
B. One pi bond
C. One sigma bond
D. Two pi bonds
Answer: C
Rationale: Single bonds = 1 σ bond.
4.
A double bond contains:
A. One sigma
B. One pi
C. One sigma and one pi bond
D. Two sigma
Answer: C
5.
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A triple bond contains:
A. One sigma
B. Two sigma
C. One sigma and two pi bonds
D. Three sigma
Answer: C
HYBRIDIZATION
6.
sp³ hybridization corresponds to:
A. Linear
B. Trigonal planar
C. Tetrahedral
D. Bent
Answer: C
7.
sp² hybridization geometry:
A. Linear
B. Trigonal planar
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C. Tetrahedral
D. Octahedral
Answer: B
8.
sp hybridization geometry:
A. Bent
B. Linear
C. Trigonal
D. Square
Answer: B
9.
Bond angle in sp³ hybridization:
A. 90°
B. 109.5°
C. 109.5°
D. 120°
Answer: C
10.
Portage Learning Chem 219 – Module 1 Exam Principles
of Organic Chemistry | Questions and Answers [Verified
Answers] Plus Rationales | Latest 2026/27
ATOMIC STRUCTURE & BONDING
1.
Carbon has how many valence electrons?
A. 2
B. 3
C. 4
D. 6
Answer: C
Rationale: Carbon is in Group 14 → 4 valence electrons.
2.
Which type of bond involves sharing electrons?
A. Ionic
B. Covalent
C. Metallic
D. Hydrogen
,© Academic_Excellence
Answer: B
Rationale: Covalent bonds share electron pairs.
3.
A single covalent bond consists of:
A. Two sigma bonds
B. One pi bond
C. One sigma bond
D. Two pi bonds
Answer: C
Rationale: Single bonds = 1 σ bond.
4.
A double bond contains:
A. One sigma
B. One pi
C. One sigma and one pi bond
D. Two sigma
Answer: C
5.
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A triple bond contains:
A. One sigma
B. Two sigma
C. One sigma and two pi bonds
D. Three sigma
Answer: C
HYBRIDIZATION
6.
sp³ hybridization corresponds to:
A. Linear
B. Trigonal planar
C. Tetrahedral
D. Bent
Answer: C
7.
sp² hybridization geometry:
A. Linear
B. Trigonal planar
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C. Tetrahedral
D. Octahedral
Answer: B
8.
sp hybridization geometry:
A. Bent
B. Linear
C. Trigonal
D. Square
Answer: B
9.
Bond angle in sp³ hybridization:
A. 90°
B. 109.5°
C. 109.5°
D. 120°
Answer: C
10.
