Chapter 1
Multiple Choice Questions:
Topic: General
Section: Intro
Difficulty Level: Easy
1. Chemical reactions occur as a result of:
A) Attraction between opposite charges
B) Nucleus–Nucleus interactions
C) Motion of electrons
D) Like atoms interacting
E) Combining two chemicals
Ans: C
Topic: General
Section: 1.1
Difficulty Level: Easy
2. Credit for the first synthesis of an organic compound from an inorganic
precursor is generally ascribed to:
A) Berzelius
B) Arrhenius
C) Kekulé
D) Wöhler
E) Lewis
Ans: D
Topic: General
Section: 1.1
Difficulty Level: Easy
3. What was long thought to be the difference between inorganic and organic
compounds?
A) The number of atoms
B) The synthesis of organic compounds required a vital force
C) The molecular weight
D) Inorganic compounds exhibited a strong nuclear force
E) Inorganic compounds were composed exclusively of transition metals
Ans: B
,Topic: Isomerism
Section: 1.2
Difficulty Level: Easy
4. The following molecules are related in what manner?
A) They are isotopes
B) They are constitutional isomers
C) They are the same structure
D) They are composed of different elements
E) There is no relationship
Ans: B
Topic: Isomerism
Section: 1.2
Difficulty Level: Easy
5. Constitutional isomers may not differ in what aspects?
A) Physical properties
B) Atomic connectivity
C) Molecular formula
D) Name
E) Constitution
Ans: C
,Topic: Isomerism
Section: 1.2
Difficulty Level: Easy
6. Which of the following structures represent compounds that are constitutional
isomers?
A) I, II
B) III, IV
C) I, II, III
D) II, III, IV
E) All of the compounds are constitutional isomers
Ans: E
Topic: Bonding type
Section: 1.2
Difficulty Level: Easy
7. Carbon generally forms four bonds and is considered:
A) Tetravalent
B) Divalent
C) Trivalent
D) Monovalent
E) Qudravalent
Ans: A
, Topic: Bonding type
Section: 1.2
Difficulty Level: Easy
8. A polar covalent bond is found in which of these compounds?
A) H2O
B) F2
C) NaCl
D) H2
E) N2
Ans: A
Topic: Bonding type
Section: 1.2
Difficulty Level: Easy
9. Which of the following bonding patterns of carbon is not allowed in the
formation of an organic compound?
A) I
B) II
C) III
D) IV
E) V
Ans: E
Topic: Isomerism
Section: 1.2
Difficulty Level: Moderate
10. Which of the following molecules would be considered constitutional isomers?
A) I, II
B) III, IV
C) II, III
D) I, IV
E) All of the compounds are constitutional isomers
Ans: D
Topic: Bonding type, Lewis structures
Section: 1.2, 1.3
Difficulty Level: Moderate
11. Considering atoms with no formal charge, which statement best describes the
valence of carbon, nitrogen, and oxygen?
A) Carbon: two bonds, zero lone pairs; nitrogen: three bonds, two lone pairs
B) Oxygen: two bonds, two lone pairs; nitrogen: three bonds, one lone pair
C) Carbon: three bonds, one lone pair; oxygen: two bonds, two lone pairs
D) Carbon: four bonds, zero lone pairs; nitrogen: two bonds, two lone pairs
E) Oxygen: three bonds, one lone pair; nitrogen: two bonds, two lone pairs
Ans: B
Topic: General
Section: 1.2
Difficulty Level: Moderate
12. The theory of matter’s conceptual foundation involved contributions from:
Multiple Choice Questions:
Topic: General
Section: Intro
Difficulty Level: Easy
1. Chemical reactions occur as a result of:
A) Attraction between opposite charges
B) Nucleus–Nucleus interactions
C) Motion of electrons
D) Like atoms interacting
E) Combining two chemicals
Ans: C
Topic: General
Section: 1.1
Difficulty Level: Easy
2. Credit for the first synthesis of an organic compound from an inorganic
precursor is generally ascribed to:
A) Berzelius
B) Arrhenius
C) Kekulé
D) Wöhler
E) Lewis
Ans: D
Topic: General
Section: 1.1
Difficulty Level: Easy
3. What was long thought to be the difference between inorganic and organic
compounds?
A) The number of atoms
B) The synthesis of organic compounds required a vital force
C) The molecular weight
D) Inorganic compounds exhibited a strong nuclear force
E) Inorganic compounds were composed exclusively of transition metals
Ans: B
,Topic: Isomerism
Section: 1.2
Difficulty Level: Easy
4. The following molecules are related in what manner?
A) They are isotopes
B) They are constitutional isomers
C) They are the same structure
D) They are composed of different elements
E) There is no relationship
Ans: B
Topic: Isomerism
Section: 1.2
Difficulty Level: Easy
5. Constitutional isomers may not differ in what aspects?
A) Physical properties
B) Atomic connectivity
C) Molecular formula
D) Name
E) Constitution
Ans: C
,Topic: Isomerism
Section: 1.2
Difficulty Level: Easy
6. Which of the following structures represent compounds that are constitutional
isomers?
A) I, II
B) III, IV
C) I, II, III
D) II, III, IV
E) All of the compounds are constitutional isomers
Ans: E
Topic: Bonding type
Section: 1.2
Difficulty Level: Easy
7. Carbon generally forms four bonds and is considered:
A) Tetravalent
B) Divalent
C) Trivalent
D) Monovalent
E) Qudravalent
Ans: A
, Topic: Bonding type
Section: 1.2
Difficulty Level: Easy
8. A polar covalent bond is found in which of these compounds?
A) H2O
B) F2
C) NaCl
D) H2
E) N2
Ans: A
Topic: Bonding type
Section: 1.2
Difficulty Level: Easy
9. Which of the following bonding patterns of carbon is not allowed in the
formation of an organic compound?
A) I
B) II
C) III
D) IV
E) V
Ans: E
Topic: Isomerism
Section: 1.2
Difficulty Level: Moderate
10. Which of the following molecules would be considered constitutional isomers?
A) I, II
B) III, IV
C) II, III
D) I, IV
E) All of the compounds are constitutional isomers
Ans: D
Topic: Bonding type, Lewis structures
Section: 1.2, 1.3
Difficulty Level: Moderate
11. Considering atoms with no formal charge, which statement best describes the
valence of carbon, nitrogen, and oxygen?
A) Carbon: two bonds, zero lone pairs; nitrogen: three bonds, two lone pairs
B) Oxygen: two bonds, two lone pairs; nitrogen: three bonds, one lone pair
C) Carbon: three bonds, one lone pair; oxygen: two bonds, two lone pairs
D) Carbon: four bonds, zero lone pairs; nitrogen: two bonds, two lone pairs
E) Oxygen: three bonds, one lone pair; nitrogen: two bonds, two lone pairs
Ans: B
Topic: General
Section: 1.2
Difficulty Level: Moderate
12. The theory of matter’s conceptual foundation involved contributions from:
