Ch17 - Chapter 17 Questions for Boson PDF

Title Ch17 - Chapter 17 Questions for Boson
Course Organic Chemistry II
Institution The City College of New York
Pages 116
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Chapter 17 Questions for Boson...


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Package Title: Solomons Test Bank Course Title: Solomons 12e Chapter Number: 17 Question type: Multiple choice 1) Which of the following is the best name for the following compound? O O

a) Isobutyl ethanoate b) Ethyl isopropanoate c) 3-methylbutyl ethanoate d) Ethoxy isobutyl ketone e) Ethyl 3-methylbutanoate Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium 2) The correct structure for ethyl 3-methylbutanoate is: O

O

O

O

O

O

II

I

III

O

O

O

O

IV

V

a) I b) II c) III d) IV e) V Answer: D Topic: Nomenclature Section: 17.2 Difficulty Level: Medium 1

3) The correct structure for bicyclo[1.1.1]pentane-2-carboxylic acid is:

a) I b) II c) III d) IV e) V Answer: D Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

2

4) The correct structure for bicyclo[2.2.2]octane-2-carboxylic acid is:

a) I b) II c) III d) IV e) V Answer: B Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

3

5) The correct structure for bicyclo[1.1.0]butane-2-carboxylic acid is:

a) I b) II c) III d) IV e) V Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

4

6) The correct structure for methyl bicyclo[1.1.1]pentane-2-carboxylate is:

a) I b) II c) III d) IV e) V Answer: D Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

5

7) The correct structure for methyl bicyclo[2.2.2]octane-2-carboxylate is:

a) I b) II c) III d) IV e) V Answer: B Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

6

8) The correct structure for methyl bicyclo[1.1.0]butane-2-carboxylate is:

a) I b) II c) III d) IV e) V Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

7

9) The correct structure for methyl bicyclo[2.2.2]octane-1-carboxylate is:

a) I b) II c) III d) IV e) V Answer: D Topic: Nomenclature Section: 17.2 Difficulty Level: Medium O O

10) A correct name for

is:

a) 2-Methylbutyl 2-methylbutanoate b) 2-Methylbutyl 3-methylbutanoate c) 3-Methylbutyl isovalerate d) Isopentyl isovalerate e) Isopentyl isobutyrate Answer: B Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

8

11) The correct structure for ethyl 3-methylbutanoate is: O

O

O

O

O

O

II

I

III

O

O

O

O

IV

V

a) I b) II c) III d) IV e) V Answer: D Topic: Nomenclature Section: 17.2 Difficulty Level: Medium Cl Cl

12) What is the IUPAC name for

O

a) -Chlorovaleryl chloride b) 2-Chloropentanoyl chloride c) 1-Chloropentanoyl chloride d) 1,2-Dichloropentanal e) 1-Chloro-1-butanecarbonyl chloride Answer: B Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

9

13) The correct structure for ethyl 2-chloropentanoyl chloride is: O O

O Cl

OH Cl

OH

OH

Cl

II

I

III O

Cl

O Cl Cl

IV

V

a) I b) II c) III d) IV e) V Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

O

O

14) What is the IUPAC name for a) -Dimethylbutyl acetateb) -Dimethyl-4-oxoethanal c) -Dimethylbutyl methanoate d) -Dimethylbutyl methylate e) -Dimethylbutyl formylate Answer: C Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

10

Cl

15) The correct structure for -methylbutyl methanoate is: O

O

H

H

O

O

O

H

II

I

O

III

O

O

O

O

IV

V

a) I b) II c) III d) IV e) V Answer: C Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

11

16) Which of the following structures is N-benzyl-N-propyl-2,3-dimethylbutanamide? H N

N

N

O

O

I

O

II

N

III

N O

IV

O

V

a) I b) II c) III d) IV e) V Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium

12

17) Which of the following structures is 3,4-dimethylpentyl chloroformate? H

Cl

O O

O

Cl

O

Cl

I

O O

II O O

III Cl

Cl

IV

O O

V

a) I b) II c) III d) IV e) V Answer: E Topic: Nomenclature Section: 17.9 Difficulty Level: Hard

18) Which compound would be the strongest acid? a) CHCl2CH2CH2CO2H b) ClCH2CHClCH2CO2H c) CH3CCl2CH2CO2H d) CH3CHClCHClCO2H e) CH3CH2CCl2CO2H Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Easy

13

19) Which compound would be the weakest acid? a) CHCl2CH2CH2CO2H b) ClCH2CHClCH2CO2H c) CH3CCl2CH2CO2H d) CH3CHClCHClCO2H e) CH3CH2CCl2CO2H Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Easy

20) Which compound would be the strongest acid? a) 4,4-dichlorobutanoic acid b) 3,4-dichlorobutanoic acid c) 3,3-dichlorobutanoic acid d) 2,3-dichlorobutanoic acid e) 2,2-dichlorobutanoic acid Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

21) Which compound would be expected to have the lowest pKa? a) 4,4-dichlorobutanoic acid b) 3,4-dichlorobutanoic acid c) 3,3-dichlorobutanoic acid d) 2,3-dichlorobutanoic acid e) 2,2-dichlorobutanoic acid Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

14

22) Which compound would be expected to have the highest pKa? a) 4,4-dichlorobutanoic acid b) 3,4-dichlorobutanoic acid c) 3,3-dichlorobutanoic acid d) 2,3-dichlorobutanoic acid e) 2,2-dichlorobutanoic acid Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

23) Which compound would be the weakest acid? a) 4,4-dichlorobutanoic acid b) 3,4-dichlorobutanoic acid c) 3,3-dichlorobutanoic acid d) 2,3-dichlorobutanoic acid e) 2,2-dichlorobutanoic acid Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

24) Which compound would be the strongest acid? a) water b) acetic acid c) ethane d) acetylene e) ethanol Answer: B Topic: Acidity Section: 17.2 Difficulty Level: Medium

15

25) Which compound would be the weakest acid? a) water b) acetic acid c) ethane d) acetylene e) ethanol Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium

26) Which compound would be expected to have the highest pKa? a) water b) acetic acid c) ethane d) acetylene e) ethanol Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium

27) Which compound would be expected to have the lowest pKa? a) water b) acetic acid c) ethane d) acetylene e) ethanol Answer: B Topic: Acidity Section: 17.2 Difficulty Level: Medium

16

28) In which of the following sequences are the compounds listed in order of decreasing acidity? a) CH3COOH > H2O > CH3CH2OH b) CH3CH2OH > CH3COOH > H2O c) CH3COOH > CH3CH2OH > H2O d) H2O > CH3COOH > CH3CH2OH e) CH3CH2OH > H2O > CH3COOH

> > > > >

HCCH > NH3 HCCH > NH3 NH3 > HCCH HCCH > NH3 HCCH > NH3

Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

29) In which of the following sequences are the compounds listed in order of increasing acidity? a) NH3 < HCCH < CH3CH2OH < H2O < CH3COOH b) CH3CH2OH < NH3 < H2O < HCCH < CH3COOH c) CH3COOH < CH3CH2OH < H2O < NH3 < HCCH d) H2O < CH3COOH < CH3CH2OH < HCCH < NH3 e) NH3 < H2O < CH3COOH < HCCH < CH3CH2OH Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

30) In which of the following sequences are the compounds listed in order of decreasing acidity? a) CH3COOH > H2O > PhOH b) PhOH > CH3COOH > H2O c) CH3COOH > PhOH > H2O d) H2O > CH3COOH > PhOH e) PhOH > H2O > CH3COOH

> > > > >

HCCH HCCH HCCH HCCH HCCH

> > > > >

NH3 NH3 NH3 NH3 NH3

Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium

31) In which of the following sequences are the compounds listed in order of decreasing acidity? 17

a) PhCOOH > H2O > PhOH > PhCH2OH > PhH b) PhCOOH > PhOH > H2O > PhCH2OH > PhH c) PhH > H2O > PhOH > PhCH2OH > PhCOOH d) PhOH > H2O > PhCOOH > PhCH2OH > PhH e) PhCOOH > H2O > PhOH > PhH > PhCH2OH Answer: B Topic: Acidity Section: 17.2 Difficulty Level: Medium

32) Which of the following would be the strongest acid? Cl CO2H

CO2H

CO2H Cl

Cl

I

II

III

CO2H Cl

IV

Cl

CO2H Cl

Cl

V

a) I b) II c) III d) IV e) V Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium

33) Which of the following would be the weakest acid? 18

Cl CO2H

CO2H

CO2H Cl

Cl

I

II

Cl

III

CO2H

CO2H

Cl

Cl

IV

Cl

V

a) I b) II c) III d) IV e) V Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

34) Which of the following would be the strongest acid? F CO2H

CO2H

CO2H

F

I

III

CO2H F

IV

F

F

II CO2H F

F

V

a) I b) II c) III d) IV e) V Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium 35) Which of the following would be the strongest acid? 19

F CO2H

CO2H

CO2H

Cl

I

F

F

II

III

CO2H

CO2H

F

Cl

Cl

IV

V

a) I b) II c) III d) IV e) V Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium

36) Which of the following would be the strongest acid? NO 2 CO2H

CO2H O2 N

I

CO 2H O2N

II

III

CO2 H NO2

IV

NO2

CO2H O2N

NO2

V

a) I b) II c) III d) IV e) V Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium 37) Which of the following would be the strongest acid? 20

CH 3 CO2H

CO2H H3 C

I

CO2H H 3C

II

CH3

III

CO2 H

CO2H

CH3

H 3C

IV

CH 3

V

a) I b) II c) III d) IV e) V Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

38) Which of the following would be the strongest acid? CO2H

OCH3 CO2H

CO2H H3CO

I

H3CO

II

III

CO2 H OCH 3

IV

OCH3

CO2H H3CO

OCH 3

V

a) I b) II c) III d) IV e) V Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium 39) Which of the following would be the weakest acid? 21

CO2H

OCH3 CO2H

CO2H H3CO

I

H3CO

II

III

CO2 H OCH 3

OCH3

CO2H H3CO

IV

OCH 3

V

a) I b) II c) III d) IV e) V Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium

40) Which of the following would be the weakest acid? CH 3 CO2H

CO2H H3 C

I

CO2H H 3C

II

III

CO2 H CH3

IV

CH3

CO2H H 3C

CH 3

V

a) I b) II c) III d) IV e) V Answer: C Topic: Acidity Section: 17.2 Difficulty Level: Medium 41) Which of the following acids would have the smallest value for pKa? 22

a) BrCH2CH2CH2COOH b) ClCH2CH2CH2COOH c) Cl2CHCH2CH2COOH d) ICHBrCH2CH2COOH e) BrCCl2CH2CH2COOH Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

42) Which of the following acids would be expected to have the smallest value for pKa? a) 4-bromobutanoic acid b) 4-chlorobutanoic acid c) 4,4-dichlorobutanoic acid d) 4-bromo-4-iodobutanoic acid e) 4-bromo-4,4-dichlorobutanoic acid Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

43) Which of the following acids would have the largest value for pKa? a) BrCH2CH2CH2COOH b) ClCH2CH2CH2COOH c) Cl2CHCH2CH2COOH d) ICHBrCH2CH2COOH e) BrCCl2CH2CH2COOH Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

44) Which of the following acids would be expected to have the largest value for pKa? 23

a) 4-bromobutanoic acid b) 4-chlorobutanoic acid c) 4,4-dichlorobutanoic acid d) 4-bromo-4-iodobutanoic acid e) 4-bromo-4,4-dichlorobutanoic acid Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

45) Which of the following acids would have the smallest value for pKa1? a) HOOCCH2CH2CH2CH2CH2COOH b) HOOCCH2CH2CH2CH2COOH c) HOOCCH2CH2CH2COOH d) HOOCCH2CH2COOH e) HOOCCH2COOH Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

46) Which compound would be most acidic? 24

O

a)

OH

OH

b)

OH

c) O

d) O

e)

H

H

Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Medium

47) In which of the following are the compounds listed in order of decreasing acidity? a) CH3CO2H > CH3CH2OH > C6H5OH > H2O b) C6H5OH > CH3CO2H > H2O > CH3CH2OH c) CH3CO2H > H2O > C6H5OH > CH3CH2OH d) H2O > CH3CO2H > C6H5OH > CH3CH2OH e) None of these choices. Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

48) In which of the following are the compounds listed in order of decreasing acidity? 25

a) CH3CO2H > CH3CH2OH > C6H5OH > H2O b) C6H5OH > CH3CO2H > H2O > CH3CH2OH c) CH3CO2H > H2O > C6H5OH > CH3CH2OH d) H2O > CH3CO2H > C6H5OH > CH3CH2OH e) CH3CO2H > C6H5OH > CH3CH2OH > H2O Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Medium

49) Which of the following would be the strongest acid? a) Benzoic acid b) 4-Nitrobenzoic acid c) 4-Methylbenzoic acid d) 4-Methoxybenzoic acid e) 4-Iodobenzoic acid Answer: B Topic: Acidity Section: 17.2 Difficulty Level: Hard

50) Which of the following acids would be expected to have the smallest value for pKa? a) Benzoic acid b) 4-Nitrobenzoic acid c) 4-Methylbenzoic acid d) 4-Methoxybenzoic acid e) 4-Iodobenzoic acid Answer: B Topic: Acidity Section: 17.2 Difficulty Level: Hard

51) Which of the following would be the weakest acid? 26

a) Benzoic acid b) 4-Nitrobenzoic acid c) 4-Methylbenzoic acid d) 4-Methoxybenzoic acid e) 4-Iodobenzoic acid Answer: D Topic: Acidity Section: 17.2 Difficulty Level: Hard

52) Which of the following acids would be expected to have the largest value for pKa? a) Benzoic acid b) 4-Nitrobenzoic acid c) 4-Methylbenzoic acid d) 4-Methoxybenzoic acid e) 4-Iodobenzoic acid Answer: D Topic: Acidity Section: 17.2 Difficulty Level: Hard

53) Which of the following would be the strongest acid? a) 2,3-Dimethylhexanoic acid b) 3,3-Diiodopentanoic acid c) 3-Iodo-4-bromopentanoic acid d) 3-Chloro-4-bromohexanoic acid e) 2-Fluoro-4-bromopentanoic acid Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Hard

54) Which of the following acids would be expected to have the smallest value for pKa? 27

a) 2,3-Dimethylhexanoic acid b) 3,3-Diiodopentanoic acid c) 3-Iodo-4-bromopentanoic acid d) 3-Chloro-4-bromohexanoic acid e) 2-Fluoro-4-bromopentanoic acid Answer: E Topic: Acidity Section: 17.2 Difficulty Level: Hard

55) Which compound would be most acidic? a) Acetic acid b) Ethanol c) Phenol d) Acetone e) Water Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Hard

56) Which of the following acids would be expected to have the smallest value for pKa? a) Acetic acid b) Ethanol c) Phenol d) Acetone e) Water Answer: A Topic: Acidity Section: 17.2 Difficulty Level: Hard

57) The IR spectrum of a compound exhibits a broad absorption band at 2500-3000 cm-1 and a 28

sharp band at 1710 cm-1. Which of these compounds could it be? a) 1-Butanol b) Propyl acetate c) Butanoic acid d) Acetyl chloride e) Acetic anhydride Answer: C Topic: Structure Identification (Spectroscopy) Section: 17.2 Difficulty Level: Easy

58) A compound has the molecular formula, C 6H12O2. Its IR spectrum shows a strong absorption band near 1740 cm-1; its 1H NMR spectrum consists of two singlets, at 1.4 and 2.0. The most likely structure for this compound is: O

O

O

O

O

O

I

II

III

O O

IV

O O

H

V

a) I b) II c) III d) IV e) V Answer: D Topic: Structure Identification (Spectroscopy) Section: 17.2 Difficulty Level: Medium

59) A compound has the molecular formula, C 6H12O2. Its IR spectrum shows a strong absorption 29

band near 1740 cm-1; its 1H NMR spectrum consists of two singlets, at 1.2 and 3.6. The most likely structure for this compound is: O

O

O

O

O

O

I

II

III

O

O

O O

IV

V

a) I b) II c) III d) IV e) V Answer: E Topic: Structure Identification (Spectroscopy) Section: 17.2 Difficulty Level: Medium

60) A compound has the molecular formula C8H14O4. Its IR spectrum shows a strong absorption 30

band near 1740 cm-1. Its 1H NMR spectrum consists of: triplet, 1.3 singlet,  2.6 quartet,  4.2 The most likely structure for the compound is: O O

O O

I

O

O

O

O

O

O

O

O

II

III O

HO2C

CO2 H

O

O O

IV

V

a) I b) II c) III d) IV e) V Answer: A Topic: Structure Identification (Spectroscopy) Section: 17.2 Difficulty Level: Medium

61) A compound with the molecular formula C5H10O2 gave the following 1H NMR spectrum: 31

triplet,  0.90 multiplet,  1.60 singlet,  1.95 triplet,  3.95 The IR spectrum showed a strong absorption band near 1740 cm -1. The most likely structure for the compound is: O O

a)

O O O

b) O

c) H

d)

O O

O HO

e) Answer: A Topic: Structure Identification (Spectroscopy) Section: 17.2 Difficulty Level: Medium

62) A compound with the molecular formula C18H18O4 has a 1H NMR spectrum that consists of: 32

singlet,  2.7 singlet,  3.1 multiplet,  7.3 The IR spectrum shows a strong absorption band near 1750 cm-1. The most likely structure for the compound is: O O
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