,TESTBANK for Organic Chemistry , 9th Edition
William H. Brown
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
1. How many electrons can the shell with a principal quantum number of 1 hold?
a. 1
b. 2
c. 4
d. 8
ANSWER: b
2. How many electrons can the shell with a principal quantum number of 6 hold?
a. 1
b. 6
c. 36
d. 72
ANSWER: d
3. What is the ground-state electronic configuration of a nitrogen atom (nitrogen: atomic number 7)?
a. 1s22s12p4
b. 1s22s22p3
c. 1s12s12p5
d. 1s22s22p2
ANSWER: b
4. What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)?
a. 1s12s12p7
b. 1s22s22p5
c. 1s22s22p6
d. 1s02s22p7
ANSWER: b
5. What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9)?
a. 1s22s22p2
b. 1s22s22p5
c. 1s22s22p6
d. 1s22s22p7
ANSWER: c
6. What is the ground-state electronic configuration of a lithium cation (lithium: atomic number 3)?
a. 1s22s1
b. 1s12s1
c. 1s2
d. 1s22s2
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
ANSWER: c
7. Which of the following species has an atom that has an unfilled valence shell of electrons?
a. molecular iodine, I2
b. calcium cation, Ca2+
c. aluminum tribromide, AlBr3
d. water, H2O
ANSWER: c
8. Which of the following species has an atom that has an unfilled valence shell of electrons?
a. molecular bromine, Br2
b. fluoride anion, F−
c. ammonia, NH3
d. aluminum trichloride, AlCl3
ANSWER: d
9. Which of the following species is charged?
a. BH3
b. SO4
c. CO2
d. H2S
ANSWER: b
10. Which of the following species possesses a formal charge?
a. CCl4
b. SiCl4
c. AlCl4
d. PCl3
ANSWER: c
11. Which of the following compounds is an aldehyde?
a. CH3CH2CH2COOH
b. CH3CH2CHO
c. CH3CH2CH2OH
d. CH3CH2COCH3
ANSWER: b
12. Which of the following compounds is an alcohol?
a. CH3CH2COOH
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Chapter 01: Covalent Bonding and Shapes of Molecules
b. CH3CH2OCH3
c. CH3CH2CH2OH
d. CH3CH2CHO
ANSWER: c
13. Which of the following compounds is a carboxylic acid?
a. CH3CH2CH2COOH
b. CH3CH2OCH3
c. CH3CH2CH2OH
d. CH3CH2NH2
ANSWER: a
14. Which of the following compounds is a ketone?
a. CH3CH2COOH
b. CH3CH2CHO
c. CH3CH2CH2OH
d. CH3COCH3
ANSWER: d
15. Which of the following compounds is a ketone?
a. CH3CH2COOH
b. CH3CH2CHO
c. CH3CH2CH2OH
d. CH3COCH3
ANSWER: d
16. Which of the following compounds is a carboxylic ester?
a. CH3CH2COOH
b. CH3CH2OCH3
c. CH3CH2COOCH3
d. CH3CH2COCH3
ANSWER: c
17. Which of the following is a tertiary alcohol?
a. CH3CH2OCH3
b. (CH3)3COH
c. (CH3)2CHOH
d. CH3CH2CH2OH
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
ANSWER: b
18. Which of the following is a tertiary amine?
a. CH3CH2N(CH3)2
b. (CH3)3CNH2
c. CH3CH2NHCH3
d. CH3CH2NHCH(CH3)2
ANSWER: a
19. Which of the following is a primary amine?
a. CH3CH2NHCH3
b. CH3CH2NHCH(CH3)2
c. CH3CH2N(CH3)2
d. (CH3)3CNH2
ANSWER: d
20. Which of the following is trigonal planar?
a. boron trifluoride, BF3
b. methyl anion, CH3−
c. methane, CH4
d. ammonia, NH3
ANSWER: a
21. Which of the following molecules is not linear?
a. H2O
b. HCl
c. HC≡CH
d. Br2
ANSWER: a
22. What is the approximate value of the H−C−H bond angles in methane, CH4?
a. 90°
b. 109°
c. 120°
d. 180°
ANSWER: b
23. What is the approximate C−C−C bond angle in propene, CH3CH=CH2?
a. 90°
b. 109°
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
c. 120°
d. 180°
ANSWER: c
24. What is the approximate C−C−C bond angle in propyne, HC≡CCH3?
a. 90°
b. 109°
c. 120°
d. 180°
ANSWER: d
25. What is the approximate H−C−O bond angle in formaldehyde, H2C=O?
a. 90°
b. 109°
c. 120°
d. 180°
ANSWER: c
26. Which of the following elements has the highest electronegativity?
a. N
b. C
c. O
d. S
ANSWER: c
27. Which of the following elements has the highest electronegativity?
a. Rb
b. Bi
c. Ge
d. Br
ANSWER: d
28. Which of the following bonds is the most polar?
a. F−F
b. H−F
c. C−H
d. C−Si
ANSWER: b
29. Which of the following bonds is the most polar?
a. O−H
b. C−H
c. C−C
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Chapter 01: Covalent Bonding and Shapes of Molecules
d. H−H
ANSWER: a
30. Which of the following bonds is a polar covalent bond?
a. K−F
b. C−H
c. C−F
d. Br−Br
ANSWER: c
31. Which of the following bonds is a polar covalent bond?
a. Na−Cl
b. C−Cl
c. C−H
d. Cl−Cl
ANSWER: b
32. Which of the following is an ionic bond?
a. Br−Br
b. C−Cl
c. C−S
d. Na−O
ANSWER: d
33. Which of the following is an ionic bond?
a. F−F
b. C−H
c. Li−O
d. C−N
ANSWER: c
34. Which of the following bonds has the smallest dipole moment?
a. C−N
b. C−O
c. C−F
d. O−H
ANSWER: a
35. Which of the following bonds has the smallest dipole moment?
a. Li−Cl
b. C−H
c. O−H
d. H−Cl
ANSWER: b
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
36. Which of the following molecules has a molecular dipole moment?
a. 1
b. 2
c. 3
d. 4
ANSWER: b
37. Which of the following molecules has a molecular dipole moment?
a. 1
b. 2
c. 3
d. 4
ANSWER: b
38. Which of the following molecules has a molecular dipole moment?
a. CO2
b. BF3
c. NH3
d. CH4
ANSWER: c
39. Which of the following molecules has a molecular dipole moment?
a. NBr3
b. CCl4
c. HC≡CH
d. Cl2
ANSWER: a
40. Which of the following best represents the shape of the 2s atomic orbital of carbon?
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, Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
a. 1
b. 2
c. 3
d. 4
ANSWER: a
41. Which of the following best represents the shape of a 2p atomic orbital of carbon?
a. 1
b. 2
c. 3
d. 4
ANSWER: b
42. Which of the following best represents an sp2 hybridized atomic orbital of carbon which overlaps with the 1s atomic
orbital of hydrogen to form a C−H σ bonding molecular orbital in ethene, H2C=CH2
a. 1
b. 2
c. 3
d. 4
ANSWER: c
43. Which of the following best represents an sp3 hybridized atomic orbital containing the lone pair of electrons of
ammonia, NH3?
a. 1
b. 2
c. 3
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William H. Brown
Notes
1- The file is chapter after chapter.
2- We have shown you 10 or five pages.
3- The file contains all Appendix and Excel
sheet if it exists.
4- We have all what you need, we make
update at every time. There are many new
editions waiting you.
5- If you think you purchased the wrong file
You can contact us at every time, we can
replace it with true one.
Our email:
,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
1. How many electrons can the shell with a principal quantum number of 1 hold?
a. 1
b. 2
c. 4
d. 8
ANSWER: b
2. How many electrons can the shell with a principal quantum number of 6 hold?
a. 1
b. 6
c. 36
d. 72
ANSWER: d
3. What is the ground-state electronic configuration of a nitrogen atom (nitrogen: atomic number 7)?
a. 1s22s12p4
b. 1s22s22p3
c. 1s12s12p5
d. 1s22s22p2
ANSWER: b
4. What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)?
a. 1s12s12p7
b. 1s22s22p5
c. 1s22s22p6
d. 1s02s22p7
ANSWER: b
5. What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9)?
a. 1s22s22p2
b. 1s22s22p5
c. 1s22s22p6
d. 1s22s22p7
ANSWER: c
6. What is the ground-state electronic configuration of a lithium cation (lithium: atomic number 3)?
a. 1s22s1
b. 1s12s1
c. 1s2
d. 1s22s2
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
ANSWER: c
7. Which of the following species has an atom that has an unfilled valence shell of electrons?
a. molecular iodine, I2
b. calcium cation, Ca2+
c. aluminum tribromide, AlBr3
d. water, H2O
ANSWER: c
8. Which of the following species has an atom that has an unfilled valence shell of electrons?
a. molecular bromine, Br2
b. fluoride anion, F−
c. ammonia, NH3
d. aluminum trichloride, AlCl3
ANSWER: d
9. Which of the following species is charged?
a. BH3
b. SO4
c. CO2
d. H2S
ANSWER: b
10. Which of the following species possesses a formal charge?
a. CCl4
b. SiCl4
c. AlCl4
d. PCl3
ANSWER: c
11. Which of the following compounds is an aldehyde?
a. CH3CH2CH2COOH
b. CH3CH2CHO
c. CH3CH2CH2OH
d. CH3CH2COCH3
ANSWER: b
12. Which of the following compounds is an alcohol?
a. CH3CH2COOH
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Chapter 01: Covalent Bonding and Shapes of Molecules
b. CH3CH2OCH3
c. CH3CH2CH2OH
d. CH3CH2CHO
ANSWER: c
13. Which of the following compounds is a carboxylic acid?
a. CH3CH2CH2COOH
b. CH3CH2OCH3
c. CH3CH2CH2OH
d. CH3CH2NH2
ANSWER: a
14. Which of the following compounds is a ketone?
a. CH3CH2COOH
b. CH3CH2CHO
c. CH3CH2CH2OH
d. CH3COCH3
ANSWER: d
15. Which of the following compounds is a ketone?
a. CH3CH2COOH
b. CH3CH2CHO
c. CH3CH2CH2OH
d. CH3COCH3
ANSWER: d
16. Which of the following compounds is a carboxylic ester?
a. CH3CH2COOH
b. CH3CH2OCH3
c. CH3CH2COOCH3
d. CH3CH2COCH3
ANSWER: c
17. Which of the following is a tertiary alcohol?
a. CH3CH2OCH3
b. (CH3)3COH
c. (CH3)2CHOH
d. CH3CH2CH2OH
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
ANSWER: b
18. Which of the following is a tertiary amine?
a. CH3CH2N(CH3)2
b. (CH3)3CNH2
c. CH3CH2NHCH3
d. CH3CH2NHCH(CH3)2
ANSWER: a
19. Which of the following is a primary amine?
a. CH3CH2NHCH3
b. CH3CH2NHCH(CH3)2
c. CH3CH2N(CH3)2
d. (CH3)3CNH2
ANSWER: d
20. Which of the following is trigonal planar?
a. boron trifluoride, BF3
b. methyl anion, CH3−
c. methane, CH4
d. ammonia, NH3
ANSWER: a
21. Which of the following molecules is not linear?
a. H2O
b. HCl
c. HC≡CH
d. Br2
ANSWER: a
22. What is the approximate value of the H−C−H bond angles in methane, CH4?
a. 90°
b. 109°
c. 120°
d. 180°
ANSWER: b
23. What is the approximate C−C−C bond angle in propene, CH3CH=CH2?
a. 90°
b. 109°
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Chapter 01: Covalent Bonding and Shapes of Molecules
c. 120°
d. 180°
ANSWER: c
24. What is the approximate C−C−C bond angle in propyne, HC≡CCH3?
a. 90°
b. 109°
c. 120°
d. 180°
ANSWER: d
25. What is the approximate H−C−O bond angle in formaldehyde, H2C=O?
a. 90°
b. 109°
c. 120°
d. 180°
ANSWER: c
26. Which of the following elements has the highest electronegativity?
a. N
b. C
c. O
d. S
ANSWER: c
27. Which of the following elements has the highest electronegativity?
a. Rb
b. Bi
c. Ge
d. Br
ANSWER: d
28. Which of the following bonds is the most polar?
a. F−F
b. H−F
c. C−H
d. C−Si
ANSWER: b
29. Which of the following bonds is the most polar?
a. O−H
b. C−H
c. C−C
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Chapter 01: Covalent Bonding and Shapes of Molecules
d. H−H
ANSWER: a
30. Which of the following bonds is a polar covalent bond?
a. K−F
b. C−H
c. C−F
d. Br−Br
ANSWER: c
31. Which of the following bonds is a polar covalent bond?
a. Na−Cl
b. C−Cl
c. C−H
d. Cl−Cl
ANSWER: b
32. Which of the following is an ionic bond?
a. Br−Br
b. C−Cl
c. C−S
d. Na−O
ANSWER: d
33. Which of the following is an ionic bond?
a. F−F
b. C−H
c. Li−O
d. C−N
ANSWER: c
34. Which of the following bonds has the smallest dipole moment?
a. C−N
b. C−O
c. C−F
d. O−H
ANSWER: a
35. Which of the following bonds has the smallest dipole moment?
a. Li−Cl
b. C−H
c. O−H
d. H−Cl
ANSWER: b
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,Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
36. Which of the following molecules has a molecular dipole moment?
a. 1
b. 2
c. 3
d. 4
ANSWER: b
37. Which of the following molecules has a molecular dipole moment?
a. 1
b. 2
c. 3
d. 4
ANSWER: b
38. Which of the following molecules has a molecular dipole moment?
a. CO2
b. BF3
c. NH3
d. CH4
ANSWER: c
39. Which of the following molecules has a molecular dipole moment?
a. NBr3
b. CCl4
c. HC≡CH
d. Cl2
ANSWER: a
40. Which of the following best represents the shape of the 2s atomic orbital of carbon?
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, Name: Class: Date:
Chapter 01: Covalent Bonding and Shapes of Molecules
a. 1
b. 2
c. 3
d. 4
ANSWER: a
41. Which of the following best represents the shape of a 2p atomic orbital of carbon?
a. 1
b. 2
c. 3
d. 4
ANSWER: b
42. Which of the following best represents an sp2 hybridized atomic orbital of carbon which overlaps with the 1s atomic
orbital of hydrogen to form a C−H σ bonding molecular orbital in ethene, H2C=CH2
a. 1
b. 2
c. 3
d. 4
ANSWER: c
43. Which of the following best represents an sp3 hybridized atomic orbital containing the lone pair of electrons of
ammonia, NH3?
a. 1
b. 2
c. 3
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