Chapter 1 - Covalent Bonding and Shapes of Molecules
Package Title: Brown/Poon Tеst Bank
Course Title: Brown/Poon 6e
Chapter Number: 1
Question type: Multiple Choice
Section 1.1
Difficulty Level: Easy
1. Which is the electronic configuration that describes Mg2+?
a) 1s2, 2s2
b) 1s2, 2s2, 2p6
c) 1s2, 2s2, 2p6, 3s2
d) 1s2, 2s2, 2p6, 3s2, 3p6
Answer: b
Section 1.1
Difficulty Level: Eаsy
2. Which is the electronic configuration that describes a neutral carbon atom?
a) 1s2, 2s2, 2p5
b) 1s2, 2s2, 2p6, 3s2
c) 1s2, 2s2, 2p2
d) 1s2, 2s2, 2p6
Answer: c
Section 1.1
Difficulty Level: Easy
3. Whiсh atom is described by the electronic configuration 1s22s22p63s23p3?
a) Mg
b) Al
c) Si
d) P
Answer: d
Section 1.1
Difficulty Level: Easy
4. Which atom is described by the electron configuration 1s22s22p63s23p5?
a) S
b) Se
c) Cl
d) Br
Answer: c
1
, Chapter 1 - Covalent Bonding and Shapes of Molecules
Section 1.1
Difficulty Level: Easy
5. A neutral carbon has how many valence electrons?
a) 2
b) 4
c) 6
d) 8
Answer: b
Section 1.1
Difficulty Level: Easy
6. A neutral oxygen has how many valence electrons?
a) 4
b) 5
c) 6
d) 7
Answer: c
Section 1.1
Difficulty Level: Easy
7. A neutral nitrogen has how many valence elеctrons?
a) 4
b) 5
c) 6
d) 7
Answer: b
Section 1.1
Difficulty Level: Medium
8. Which statement about orbitals is false?
a) Orbitals are regions of space where electrons are found.
b) Orbitals may contain up to two electrons each.
c) Orbitals are filled in order of decreasing energy.
d) Orbitals of equivalent energy are half filled before adding two electrons to any one of them.
Answer: c
2
, Chapter 1 - Covalent Bonding and Shapes of Molecules
Section 1.2
Difficulty Level: Easy
9. Which atom is described by the Lewis structure ?
a) C
b) P
c) Se
d) I
Answer: c
Section 1.2
Difficulty Level: Easy
10. Which atom is described by the Lewis structure ?
a) C
b) P
c) Se
d) I
Answer: a
Section 1.2
Difficulty Level: Medium
11. Which Lewis structures are correct?
HINT: Perform a total valence count and check formal charges.
a) I
b) II
c) III
d) IV
Answer: a
3
, Chapter 1 - Covalent Bonding and Shapes of Molecules
Sections 1.2, 1.7
Difficulty Level: Medium
12. Which Lewis structures аre correct?
HINT: Perform a total valence count and check formal charges.
a) I, II
b) II, IV
c) III, IV
d) I, III
Answer: c
Section 1.2
Difficulty Level: Medium
13. Which functional groups have correct Lewis structures?
a) I, II
b) II, III
c) I, II, III
d) I, III
Answer: d
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Package Title: Brown/Poon Tеst Bank
Course Title: Brown/Poon 6e
Chapter Number: 1
Question type: Multiple Choice
Section 1.1
Difficulty Level: Easy
1. Which is the electronic configuration that describes Mg2+?
a) 1s2, 2s2
b) 1s2, 2s2, 2p6
c) 1s2, 2s2, 2p6, 3s2
d) 1s2, 2s2, 2p6, 3s2, 3p6
Answer: b
Section 1.1
Difficulty Level: Eаsy
2. Which is the electronic configuration that describes a neutral carbon atom?
a) 1s2, 2s2, 2p5
b) 1s2, 2s2, 2p6, 3s2
c) 1s2, 2s2, 2p2
d) 1s2, 2s2, 2p6
Answer: c
Section 1.1
Difficulty Level: Easy
3. Whiсh atom is described by the electronic configuration 1s22s22p63s23p3?
a) Mg
b) Al
c) Si
d) P
Answer: d
Section 1.1
Difficulty Level: Easy
4. Which atom is described by the electron configuration 1s22s22p63s23p5?
a) S
b) Se
c) Cl
d) Br
Answer: c
1
, Chapter 1 - Covalent Bonding and Shapes of Molecules
Section 1.1
Difficulty Level: Easy
5. A neutral carbon has how many valence electrons?
a) 2
b) 4
c) 6
d) 8
Answer: b
Section 1.1
Difficulty Level: Easy
6. A neutral oxygen has how many valence electrons?
a) 4
b) 5
c) 6
d) 7
Answer: c
Section 1.1
Difficulty Level: Easy
7. A neutral nitrogen has how many valence elеctrons?
a) 4
b) 5
c) 6
d) 7
Answer: b
Section 1.1
Difficulty Level: Medium
8. Which statement about orbitals is false?
a) Orbitals are regions of space where electrons are found.
b) Orbitals may contain up to two electrons each.
c) Orbitals are filled in order of decreasing energy.
d) Orbitals of equivalent energy are half filled before adding two electrons to any one of them.
Answer: c
2
, Chapter 1 - Covalent Bonding and Shapes of Molecules
Section 1.2
Difficulty Level: Easy
9. Which atom is described by the Lewis structure ?
a) C
b) P
c) Se
d) I
Answer: c
Section 1.2
Difficulty Level: Easy
10. Which atom is described by the Lewis structure ?
a) C
b) P
c) Se
d) I
Answer: a
Section 1.2
Difficulty Level: Medium
11. Which Lewis structures are correct?
HINT: Perform a total valence count and check formal charges.
a) I
b) II
c) III
d) IV
Answer: a
3
, Chapter 1 - Covalent Bonding and Shapes of Molecules
Sections 1.2, 1.7
Difficulty Level: Medium
12. Which Lewis structures аre correct?
HINT: Perform a total valence count and check formal charges.
a) I, II
b) II, IV
c) III, IV
d) I, III
Answer: c
Section 1.2
Difficulty Level: Medium
13. Which functional groups have correct Lewis structures?
a) I, II
b) II, III
c) I, II, III
d) I, III
Answer: d
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