Ch12 Carbonyl, Alcohol, Redox Test Bank - Organic Chemistry 13e | Test Bank by Solomons by Graham Solomons. DOCX document preview.

Ch12 Carbonyl, Alcohol, Redox Test Bank

Package title: Solomons Test Bank

Course Title: Solomons 13e

Chapter Number: 12

Question type: Multiple choice

1) Which of the following resonance structures is not a significant contributor to the hybrid for the carbonyl group?

a) I

b) II

c) III

d) Neither II nor III is important.

e) All are significant contributors.

Topic: General Carbonyl Information

Section: 12.1

Difficulty Level: Easy

2) When nucleophilic addition to a carbonyl group occurs, the carbon attacked undergoes this hybridization change:

a) sp2  sp3

b) sp  sp2

c) sp  sp3

d) sp3  sp2

e) sp2  sp

Topic: General Carbonyl Information

Section: 12.1

Difficulty Level: Easy

3) The following transformation would be considered a(n)?

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

4) The following transformation would be considered a(n)?

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

5) The following transformation would be considered a(n)?

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

6) The following transformation would be considered a(n)?

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

7) The following transformation would be considered a(n)?

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

8) The following transformation would be considered a(n)?

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

9) Which reaction is an oxidation?

a) RCHO  RCO2H

b) RCH2OH  RCHO

c) RCH2OH  RCO2H

d) None of these choices.

e) All of these choices.

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

10) Which of these transformations cannot be classified as a reduction?

a) RCH2Cl  RCH3

b) RCH=CH2  RCH2CH3

c) RCOOH  RCH2OH

d)

e) All of these are reductions.

Section: 12.2

Difficulty Level: Easy

Topic: Oxidation-Reduction

11) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) I, III, II

c) II, I, III

d) III, II, I

e) III, I, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

12) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) I, III, II

c) II, I, III

d) III, I, II

e) III, II, I

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

13) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

14) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

15) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

16) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

17) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

18) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

19) List the following compounds in order of increasing level of oxidation:

a) I, II, III

b) III, II, I

c) II, I, III

d) III, I, II

e) I, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

20) The following transformation would be considered a(n)?

a) reduction

b) oxidation

c) addition

d) elimination

e) rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

21) The following transformation would be considered a(n)?

a) reduction

b) oxidation

c) addition

d) elimination

e) rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

22) The following transformation would be considered a(n)?

a) reduction

b) oxidation

c) addition

d) elimination

e) rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

23) List the following alkyl halides in order of increasing ease of Grignard formation:

a) I, II, III, IV

b) III, I, II, IV

c) IV, II, I, III

d) III, I, IV, II

e) I, IV, III, II

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Medium

24) Which product is formed from the following transformation:

a)

b)

c)

d)

e)

Topic: Synthetic Strategy, Redox

Section: 12.2

Difficulty Level: Easy

25) Which of these compounds will not be reduced by LiAlH4?

a) CH3CH2CH2CH=CH2

b)

c)

d)

e)

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

26) Which reagent(s) is/are capable of reducing the following ester to a primary alcohol?

a) LiAlH4 / ether

b) NaBH4 / H2O

c) Na / C2H5OH

d) H2 / Ni, atmospheric pressure

e) All can be used successfully.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

27) Which of the reagents listed below would efficiently accomplish the transformation of 3-methyl-3-cyclopentenone into 3-methyl-3-cyclopentenol?

a) i) LiAlH4; ii) H2O

b) NaBH4,H2O

c) H2, Pd

d) More than one of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

28) Which of the reagents listed below would efficiently accomplish the transformation of ethyl-3-pentenoate into 3-penten-1-ol?

a) i) LiAlH4; ii) H2O

b) NaBH4,H2O

c) H2, Pd

d) Two of these choices.

e) All of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

29) Which reagent(s) would you use to convert CH3(CH2)6CO2H to CH3(CH2)6CH2OH?

a) NaBH4/H2O

b) LiAlH4/ether, then H3O+

c) PCC/CH2Cl2

d) Zn, H3O+

e) H2, Pt

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

30) Which of these compounds cannot be reduced by sodium borohydride?

a)

b)

c)

d)

e) Two of these choices cannot be reduced.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

31) In the reaction of carbonyl compounds with LiAlH4, the effective reducing species is:

a) Li+

b) Al+3

c) AlH4

d) AlH3

e) H

Topic: Redox, Reaction Mechanisms

Section: 12.3

Difficulty Level: Easy

32) Which of the reagents listed below would efficiently accomplish the transformation of CH3CH2CH=CHCH2CH2CHO into CH3CH2CH=CHCH2CH2CH2OH?

a) KMnO4

b) NaBH4

c) Br2 in CCl4

d) H2, Ni

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

33) Which of the reagents listed below would efficiently accomplish the transformation of CH3CH2CH=CHCH2CH2CH2OH into CH3CH2CH=CHCH2CH2CHO?

a) KMnO4(aq, alkaline)

b) CrO3 / H2SO4

c) PCC in CH2Cl2

d) Br2, CCl4

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.4

Difficulty Level: Easy

34) Which of the reagents listed below would efficiently accomplish the transformation of CH3CH2CH=CHCH2CH2CH2OH into CH3CH2CH=CHCH2CH2CHO?

a) KMnO4, OH

b) CrO3 / H2SO4

c) (i) (COCl)2, DMSO, –60 oC, (ii) Et3N

d) Br2, CCl4

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.4

Difficulty Level: Easy

35) Which of the reagents listed below would efficiently accomplish the transformation of CH3CH2CH=CHCH2CH2CH2OH into CH3CH2CH=CHCH2CH2CHO?

a) KMnO4, OH

b) CrO3 / H2SO4

c) PCC in CH2Cl2

d) (i) (COCl)2, DMSO, –60 oC, (ii) Et3N

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.4

Difficulty Level: Easy

36) Which of the reagents listed below would efficiently accomplish the transformation of CH3CH2C≡CCH2CH2CHO into CH3CH2C≡CCH2CH2CH2OH?

a) KMnO4

b) NaBH4

c) Br2 in CCl4

d) H2, Ni

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Easy

37) Which of the reagents listed below would efficiently accomplish the transformation of CH3CH2CH=CHCH2CH2CHO into CH3CH2CH2CH2CH2CH2CH2OH?

a) KMnO4

b) NaBH4

c) Br2 in CCl4

d) H2, Ni

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.2

Difficulty Level: Medium

38) Select the correct reagent(s) for the following reaction:

a) LiAlH4/ether; then H3O+

b) NaBH4; then H3O+

c) H2 with Pt/C

d) Two of these choices.

e) All of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Medium

39) Select the correct reagent(s) for the following reaction:

a) LiAlH4/ether; then H3O+

b) NaBH4; then H3O+

c) H2 with Pt/C

d) Two of these choices.

e) All of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Medium

40) Which of the reagents listed below would efficiently accomplish the transformation of 2-methyl-3-cyclopentenol into 2-methyl-3-cyclopentenone?

a) KMnO4(aq, alkaline)

b) CrO3/H2SO4

c) H2, Pt

d) Br2, CCl4

e) Two of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.4

Difficulty Level: Medium

41) Which reagent(s) is/are capable of reducing the following ester to an aldehyde?

a) LiAlH4 / ether

b) NaBH4 / H2O

c) Na / C2H5OH

d) H2 / Ni, atmospheric pressure

e) None of these choices can be used successfully.

Topic: Synthetic Strategy, Redox

Section: 12.3

Difficulty Level: Medium

42) Which product is formed from the following transformation:

a)

b)

c)

d)

e) None of these choices.

Topic: Synthetic Strategy, Redox

Section: 12.8

Difficulty Level: Medium

43) Your task is to synthesize through a Grignard synthesis. Which pairs of compounds listed below would you choose as starting materials?

a)

b)

c)

d) More than one of these choices.

e) None of these choices.

Topic: Synthetic Strategy

Section: 12.8

Difficulty Level: Medium

44) Your task is to synthesize through a Grignard synthesis. Which pairs of compounds listed below would you choose as starting materials?

a)

b)

c)

d)

e) None of these choices.

Topic: Synthetic Strategy

Section: 12.8

Difficulty Level: Medium

45) How could the following synthesis be accomplished?

a) (1) SOCl2, (2) Mg, ether, (3) then H3O+

b) (1) SOCl2, (2) Li, ether, (3) (CH3CH2)2CuLi, (4) KMnO4, OH

c) 1) PBr3, (2) Mg, ether, (3) then H3O+ (4) PCC, CH2Cl2

d) More than one of these choices.

e) None of these choices.

Topic: Synthetic Strategy

Section: 12.8

Difficulty Level: Hard

46) Which of the following synthetic procedures would be employed most effectively to transform ethanol into ethyl propyl ether?

a) Ethanol + HBr, then Mg/ether, then H3O+, then NaH, then CH3CH2Br

b) Ethanol + HBr, then Mg/ether, then HCHO, then H3O+, then NaH, then CH3CH2Br

c) Ethanol + CH3CH2CH2OH + H2SO4/140 C

d) Ethanol + NaH, then HCHO, then H3O+, then HBr, then Mg/ether, then CH3CH2CH2Br

e) Ethanol + H2SO4/180 °C, then CH3CH2CH2Br

Topic: Synthetic Strategy

Section: 12.8

Difficulty Level: Hard

47) Which reaction leads to an optically active product?

a)

b)

c)

d)

e)

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Hard

48) Which method would give

a)

b)

c)

d) More than one of these choices.

e) None of these choices.

Topic: Synthetic Strategy

Section: 12.4 and 12.8

Difficulty Level: Hard

49) Which combination of reagents id to be preferred for the synthesis of 2,4-dimethylhexane by the Corey-Posner, Whitesides-House procedure?

a) Lithium dimethylcuprate + 4-bromo-2-methylhexane

b) Lithium di(2-methylbutyl)cuprate + isopropyl bromide

c) Lithium diisobutylcuprate + sec-butyl bromide

d) Lithium diisopropylcuprate + 1-bromo-2-methylbutane

e) Lithium dimethylcuprate + 2-bromo-4-methylhexane

Topic: Reactions and Reduction Sequences (Redox)

Section 12.3

Difficulty Level: Easy

50) Which of these reduction reactions would be unsuccessful?

a) A picture containing diagram

Description automatically generated

b)

c) Diagram

Description automatically generated

d)

e) All of these are successful reductions.

51) What would be the product, A, of the following reaction?

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.3

Difficulty Level: Easy

52) What is the major product from the reaction of 2-hexanol with PCC in CH2Cl2?

a) CH3CO2H

b) CH3(CH2)3CO2H

c)

d) CH3(CH2)4CO2H

e) Two of these choices.

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.4

Difficulty Level: Easy

53) What is the major product from the reaction of 2-hexanol with KMnO4?

a) CH3CO2H

b) CH3(CH2)3CO2H

c)

d) CH3(CH2)4CO2H

e) Two of these choices.

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.4

Difficulty Level: Easy

54) What is the major product from the reaction of 2-hexanol with Na2Cr2O7/H+?

a) CH3CO2H

b) CH3(CH2)3CO2H

c)

d) CH3(CH2)4CO2H

e) Two of these choices.

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.4

Difficulty Level: Easy

55) What is the major product from the reaction of 2-hexanol with H2CrO4?

a) CH3CO2H

b) CH3(CH2)3CO2H

c)

d) CH3(CH2)4CO2H

e) Two of these choices.

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.4

Difficulty Level: Easy

56) What is the major product from the reaction of toluene with KMnO4?

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.4

Difficulty Level: Easy

57) What would be the product, O, of the following reaction sequence?

a) CH3CH2CH2CH3

b)

c)

d) CH3CH2CH2CH2OD

e) CH3CH2CH2CH2D

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Easy

58) What compound(s) result(s) from the reaction of CH3CH2CH2MgBr with CH3CH2CH2CH2CO2H (1:1 mole ratio)?

a)

b)

c)

d) CH3CH2CH3 + CH3CH2CH2CH2CO2MgBr

e)

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Easy

59) What is the principal product(s) formed when 1 mol of methylmagnesium iodide reacts with 1 mol of p-hydroxyacetophenone?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.7

Difficulty Level: Easy

60) What is the principal product(s) formed when 1 mol of methylmagnesium iodide reacts with 1 mol of p-acetylbenzoic acid?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.7

Difficulty Level: Easy

61) What would be the product, A, of the following reaction sequence?

a) CH3CH2CH2CH3

b)

c)

d) CH3CH2CH2CH2OD

e) CH3CH2CH2CH2D

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

62) What would be the product, A, of the following reaction sequence?

a) CH3CH2CH2CH3

b)

c)

d) CH3CH2CH2CH2OD

e) CH3CH2CH2CH2D

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

63) What would be the product, A, of the following reaction sequence?

a) CH3CH2CH2CH3

b)

c)

d) CH3CH2CH2CH2OD

e) CH3CH2CH2CH2D

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

64) What is (are) the principal product(s) formed when 1 mol of ethylmagnesium bromide reacts with 1 mol of 3-(N-methylamino)cyclopentanone?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.7

Difficulty Level: Medium

65) Predict the product(s) of the following reaction:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.3

Difficulty Level: Medium

66). Predict the product(s) of the following reaction:

a) I

b) II

c) III

d) IV

e) A mixture of two or more of these choices.

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.4

Difficulty Level: Medium

67) What product(s) is/are formed in the following reaction?

a) CH3CH2CH2CH2OD + CH3CH2OD

b) CH3CH2CH2CD2OD + CH3CH2OD

c) CH3CH2CH2CD2OH + CH3CH2OH

d) CH3CH2CH2CHDOD + CH3CH2OD

e)

Topic: Reactions and Reaction Sequences

Section: 12.3

Difficulty Level: Medium

68) Predict the product(s) of the following reaction:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.3

Difficulty Level: Medium

69) When 1-pentanol is treated with alkaline potassium permanganate,

a) the color changes from orange to blue.

b) the color changes from purple to colorless.

c) the color changes from blue to red.

d) the color changes from orange to green.

e) the color changes from green to orange.

Topic: Reactions and Reaction Sequences (Chemical Tests)

Section: 12.4

Difficulty Level: Medium

70) Predict the product(s) of the following reaction:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Redox)

Section: 12.3

Difficulty Level: Medium

71) The final product, D, in the following reaction sequence,

, would be?

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

72) The final product, B, in the following reaction sequence,

,would be?

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

73) The final product, B, in the following reaction sequence,

,would be?

a)

b)

c)

d)

e) NNone of these choices.

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

74) The final product, D, in the following reaction sequence

,

would be:

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

75) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

76) What is the principal product of the following reaction:

+ CH3CH2CH2CH2MgBr/ether; then H2O  ?

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences

Section: 12.7

Difficulty Level: Medium

77) What would be the final product, A, in the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.7

Difficulty Level: Medium

78) What would be the final product, A, in the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.7

Difficulty Level: Medium

79) What would be the final product, D, in the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.7

Difficulty Level: Medium

80) What would be the final product, D, in the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.7

Difficulty Level: Medium

81) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

82) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

83) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

84) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

85) Predict the product(s) of the following reaction:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.8

Difficulty Level: Medium

86) Predict the product(s) of the following reaction sequence:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.8

Difficulty Level: Medium

87) Predict the product(s) of the following reaction sequence:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.8

Difficulty Level: Medium

88) Predict the product(s) of the following reaction sequence:

a) A mixture of I and II

b) A mixture of I and III

c) A mixture of II and III

d) A mixture of II and IV

e) A mixture of III and IV

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.8

Difficulty Level: Medium

89) What is/are the principal product(s) formed when excess methylmagnesium iodide reacts with p-hydroxyacetophenone?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.7 and 12.8

Difficulty Level: Medium

90) Predict the product(s) of the following reaction sequence:

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Medium

91) What product(s) is/are produced in the 1:1 reaction of sec-butylmagnesium bromide with

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

92) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.7 and 12.8

Difficulty Level: Medium

93) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.7 and 12.8

Difficulty Level: Medium

94) What is the product, A, that would be obtained from the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

95) What is the product, A, that would be obtained from the following reaction sequence?

NaNH2

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

96) What is the product, A, that would be obtained from the following reaction sequence?

Br

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

97) What is the final product?

a)

b)

c)

d)

e) None of these choices.

Topic: Reactions and Reaction Sequences

Section: 12.8

Difficulty Level: Medium

98) What is/are the principal product(s) formed when excess methylmagnesium iodide reacts with p-hydroxyacetophenone?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.9

Difficulty Level: Hard

99) What is/are the principal product(s) formed when excess methylmagnesium iodide reacts with methyl 4-hydroxybenzoate?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences (Grignard)

Section: 12.9

Difficulty Level: Hard

100) What would be the product, D, of the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Medium

101) What would be the product, C, of the following reaction sequence?

a) 2,6-Dimethylheptane

b) 2,2-Dimethylpropane

c) 2-Methylpentane

d) 2,2,5-Trimethylhexane

e) 2,2,6-Trimethylheptane

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

102) What would be the product, D, of the following reaction sequence?

a) 2,6-Dimethylheptane

b) 2,2-Dimethylpropane

c) 2-Methylpentane

d) 2,2,5-Trimethylhexane

e) 2,2,6-Trimethylheptane

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

103) What would be the product, D, of the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

104) What would be the alkane C that is the product of the following reaction sequence?

a)

b)

c)

d)

e)

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

105) What would be the major product of the following reaction?

a) (R)-3-ethyl-5-methylheptane

b) (R,S)-3-ethyl-5-methylheptane

c) (S)-3-ethyl-5-methylheptane

d) (3R,5S)-5-ethyl-3-methylheptane

e) (3S,5R)-5-ethyl-3-methylheptane

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

106) The reaction of lithium di-sec-butylcuprate with isopentyl bromide yields:

a) 2,5-Dimethylheptane

b) 2,6-Dimethylheptane

c) 3,5-Dimethylheptane

d) 3,4-Dimethylheptane

e) 3,6-Dimethylheptane

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

107) The reaction of lithium diethylcuprate with 1-bromo-4,4-dimethylhexane yields:

a) 3,3-Dimethylheptane

b) 3,3-Dimethyloctane

c) 1-Ethyl-4,4-dimethylhexane

d) Di-4,4-dimethylhexylcuprate

e) None of these choices.

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

108) What would be the major product of the following reaction?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.3

Difficulty Level: Hard

109) What would be the major product of the following reaction?

a) CH3CH2OCH(CH3)CH2CH2CH2CH3

b) (CH3CH2O)2CHCHOHCH2CH2CH3

c) (CH3CH2)2CHOHCH2CH2CHOHCH3

d) CH3OCH(C2H5)CH2CH2CH2CH3

e) CH3CH2CH(OCH3)CH2CH2CHOHCH3

Topic: Reactions and Reaction Sequences (Redox, SN2)

Section: 12.4, 12.6, and 12.7

Difficulty Level: Hard

110) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

111) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

112) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

113) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

114) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

115) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

116) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

117) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

118) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

119) What is the final product of the following reaction sequence?

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

120) The final product, E, in the following reaction sequence is,

a) I

b) II

c) III

d) IV

e) V

Topic: Reactions and Reaction Sequences

Section: 12.4, 12.6 and 12.7

Difficulty Level: Hard

121) The reagent PCC in dry methylene chloride is successful in the selective oxidation of primary alcohols to aldehydes because:

a) PCC is a relatively weak oxidizing agent.

b) primary alcohols cannot oxidize any further.

c) hydration of the intermediate aldehyde is unable to take place in dry methylene chloride.

d) methylene chloride is a reducing agent.

e) None of these choices.

Topic: Redox, Reaction Mechanisms

Section: 12.4

Difficulty Level: Easy

122) The Swern oxidation is a method successful for the selective oxidation of primary alcohols to aldehydes because:

a) oxalyl chloride is a weak oxidizing agent.

b) primary alcohols cannot oxidize any further.

c) hydration of the intermediate aldehyde is unable to take place under the conditions employed.

d) DMSO is a reducing agent.

e) None of these choices.

Topic: Redox, Reaction Mechanisms

Section: 12.4

Difficulty Level: Easy

123) Fundamentally, 2-methyl-2-pentanol does not undergo oxidation by H2CrO4 because:

a) the intermediate chromate ester is not formed.

b) the oxidant isn't in a sufficiently high oxidation state.

c) the alcohol undergoes dehydration.

d) the intermediate chromate ester cannot lose hydrogen.

e) Actually, this oxidation does occur.

Topic: Redox, Reaction Mechanisms

Section: 12.4

Difficulty Level: Easy

124) CrO3 in H2SO4/H2O will fail to give a positive test with which of these compounds?

a) CH3CH2CH2CH2OH

b)

c) (CH3)3COH

d)

e) More than one of these choices.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

125) Jones reagent will fail to give a positive test with?

a)

b)

c)

d)

e) All of these choices.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

126) Which reagent(s) will distinguish between cyclopentanol and cyclopentane?

a) Br2/CCl4

b) KMnO4 (cold)

c) CrO3/aqueous H2SO4

d) NaOH(aq)

e) Two of these choices

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

127) Which reagent(s) will distinguish between 2-methylcyclopentanol and 1-methylcyclopentanol?

a) Br2/CCl4

b) KMnO4

c) CrO3/aqueous H2SO4

d) NaOH(aq)

e) Two of these choices.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

128) Which of the reagents listed below would serve as the basis for a simple chemical test to distinguish between (CH3)3COH and (CH3)2CHCH2OH?

a) NaH

b) NaOH/H2O

c) Br2 in CCl4

d) Cold conc. H2SO4

e) CrO3 in H2SO4

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

129) Which of the reagents listed below would serve as the basis for a simple chemical test to distinguish between (CH3)3COH and (CH3)2CHCH2OH?

a) NaH

b) NaOH/H2O

c) Br2 in CCl4

d) Cold conc. H2SO4

e) Jones reagent

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

130) Which of the following reagents might serve as the basis for a simple chemical test that would distinguish between CH3CH=CHCH3 and CH3CHOHCH2CH3?

a) CrO3 in H2SO4

b) KMnO4

c) Br2 in CCl4

d) Two of these choices.

e) All of these choices.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Medium

131) Which of the reagents listed below would serve as the basis for a simple chemical test to distinguish between CH3CH=CHCH2OH and CH3CH2CH2CH2OH?

a) CrO3 in H2SO4

b) Cold conc. H2SO4

c) Br2 in CCl4

d) NaOH/H2O

e) NaBH4

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Medium

132) Which of the reagents listed below would serve as the basis for a simple chemical test to distinguish between (CH3)2C=CHCH2CH2OH and (CH3)2CHCH2CH2CH2OH?

a) CrO3 in H2SO4

b) Cold conc. H2SO4

c) Br2 in CCl4

d) NaOH/H2O

e) NaBH4

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Medium

133) Consider the molecule

Which reagent will not give a positive test with this compound?

a) Cold conc. H2SO4

b) Br2/CCl4

c) NaOH(aq)

d) CrO3/H2SO4

e) Dilute KMnO4/H2O

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Medium

134) When 2-pentanol is treated with chromic acid,

a) the color changes from orange to blue.

b) the color changes from purple to colorless.

c) the color changes from blue to red.

d) the color changes from orange to green.

e) the color changes from green to orange.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Medium

135) When 3-methyl-3-pentanol is treated with chromic acid,

a) the color changes from orange to blue.

b) the color changes from purple to colorless.

c) the purple color remains unchanged.

d) the color changes from orange to green.

e) the orange color remains unchanged.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Medium

136) Which of the reagents/techniques listed below would serve as the basis for a simple chemical test to distinguish between 2-methyl-3-hexyn-2-ol and 2-methyl-5-hexyn-1-ol?

a) CrO3 in H2SO4

b) IR spectroscopy

c) Br2 in CCl4

d) Both CrO3 in H2SO4 and IR spectroscopy.

e) All of these choices.

Topic: Functional Group Tests

Section: 2.16 and 12.4

Difficulty Level: Medium

137) Which of the reagents/techniques listed below would serve as the basis for a simple chemical test to distinguish between 2-methyl-3-hexyn-1-ol and 2-methyl-5-hexyn-1-ol?

a) CrO3 in H2SO4

b) Cold conc. H2SO4

c) Br2 in CCl4

d) NaBH4

e) IR spectroscopy

Topic: Functional Group Tests

Section: 2.16 and 12.4

Difficulty Level: Medium

138) Which of the reagents/techniques listed below would serve as the basis for a simple chemical test to distinguish between CH3CH2CH=CHCH2CH2CHO and CH3CH2CH=CHCH2CH2CH2OH?

a) KMnO4

b) IR spectroscopy

c) Br2 in CCl4

d) Two of these choices.

e) All of these choices.

Topic: Functional Group Tests

Section: 2.16 and 12.4

Difficulty Level: Medium

139) Which of these is the least reactive type of organometallic compound?

a) RK

b) R2Hg

c) RLi

d) R2Zn

e) R3Al

Topic: Reactivity of Grignards and Other Organometallics

Section: 12.5

Difficulty Level: Easy

140) If the role of the solvent is to assist in the preparation and stabilization of the Grignard reagent by coordination with the magnesium, which of these solvents should be least effective?

a) I

b) II

c) III

d) IV

e) V

Topic: Synthesis of Grignards and Other Organometallics

Section: 12.6

Difficulty Level: Easy

141) Grignard reagents react with oxirane (ethylene oxide) to form 1 alcohols but can be prepared in tetrahydrofuran solvent. Why is this difference in behavior observed?

a) Steric hindrance in the case of tetrahydrofuran precludes reaction with the Grignard.

b) There is a better leaving group in the oxirane molecule.

c) The oxirane ring is the more highly strained.

d) It is easier to obtain tetrahydrofuran in anhydrous condition.

e) Oxirane is a cyclic ether, while tetrahydrofuran is a hydrocarbon.

Topic: Synthesis of Grignards and Other Organometallics

Section: 12.7

Difficulty Level: Easy

142) Which synthesis of a Grignard reagent would fail to occur as written?

a)

b)

c)

d)

e) All of these choices will succeed.

Topic: Synthetic Strategy

Section: 12.8

Difficulty Level: Easy

143) Which of these reactions will not produce a 1 alcohol?

a)

b)

c)

d)

e)

Topic: Synthetic Strategy

Section: 12.3 and 12.7

Difficulty Level: Medium

144) Which of the following would serve as a synthesis of racemic 2-methyl-1-phenyl-2-butanol?

a) I

b) II

c) III

d) All of these choices.

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

145) Which of the following reactions would serve as a reasonable synthesis of the following racemic alcohol (2-phenyl-2-butanol)?

a)

b)

c)

d) Two of these choices.

e) All of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

146) Which Grignard synthesis will produce an optically active product or product mixture?

a)

b)

c)

d)

e)

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

147) Which of the following is the strongest base?

a) RMgX

b) Mg(OH)X

c) RH

d) H2O

e) NaOH

Topic: Acid/Base

Section: 12.8

Difficulty Level: Medium

148) In which of the following series are the compounds arranged in order of decreasing basicity?

a) CH3CH2MgBr > NaNH2 > HCCNa > NaOH > CH3CH2ONa

b) CH3CH2MgBr > NaNH2 > HCCNa > CH3CH2ONa > NaOH

c) HCCNa > CH3CH2MgBr > NaNH2 > CH3CH2ONa > NaOH

d) NaNH2 > CH3CH2MgBr > HCCNa > CH3CH2ONa > NaOH

e) None of these choices.

Topic: Acid/Base

Section: 12.8

Difficulty Level: Medium

149) Which of these compounds cannot be used to prepare the corresponding Grignard reagent?

a) CH3OCH2CH2CH2Br

b) (CH3)3CCl

c) CH2=CHCH2Br

d) (CH3)2NCH2CH2Br

e)

Topic: Synthesis of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

150) Which of these compounds can be used to prepare the corresponding Grignard reagent?

a) CH3CHOHCH2CH2CH2CH2Br

b) (CH3)3CHCHBrCH2CH2CO2H

c) BrCH=CHCH2CH2CH3

d) CH3NHCH2CH2Br

e) None of these choices can be used to prepare the corresponding Grignard reagent.

Topic: Synthesis of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

Question type: fill-in-the-blank

151) Because the carbonyl carbon bears a partial positive charge, it is susceptible to ___ attack.

Topic: General

Section: 12.1

Difficulty Level: Easy

152) Because the carbonyl oxygen bears a partial negative charge, it is susceptible to ___ attack.

Topic: General

Section: 12.1

Difficulty Level: Easy

153) When nucleophilic addition to a carbonyl group occurs, the carbon attacked undergoes this hybridization change:

Topic: General

Section: 12.1

Difficulty Level: Easy

154) A reaction which increases the hydrogen content or decreases the oxygen content of an organic molecule is called a(n) ___.

Topic: General, Redox

Section: 12.2

Difficulty Level: Easy

155) A reaction which increases the oxygen content or decreases the hydrogen content of an organic molecule is called a(n) ___.

Topic: General, Redox

Section: 12.2

Difficulty Level: Easy

156) LAH is the abbreviation for the powerful reducing agent ___.

Topic: General, Redox

Section: 12.3

Difficulty Level: Easy

157) A negatively charged hydrogen atom is called a ___.

Topic: General, Redox

Section: 12.3

Difficulty Level: Easy

158) In the reaction of carbonyl compounds with LiAlH4, the effective reducing species is:

Topic: Redox Reactions

Section: 12.3

Difficulty Level: Easy

159) In the reaction of carbonyl compounds with NaBH4, the effective reducing species is:

Topic: Redox Reactions

Section: 12.3

Difficulty Level: Easy

160) A solution of CrO3 or Na2Cr2O7 in aqueous sulfuric acid is called the ___.

Topic: General, Redox Reagents

Section: 12.4

Difficulty Level: Easy

161) Upon reaction with a primary or secondary alcohol, the change in oxidation state of chromium ion in Jones reagent is from ___ to ___.

Topic: Redox Reactions

Section: 12.4

Difficulty Level: Easy

162) Upon reaction with a primary or secondary alcohol with CrO3 in H2SO4, the alcohol is ___ and the CrO3 is ___.

Topic: Redox Reactions

Section: 12.4

Difficulty Level: Easy

163) Upon oxidation of a 1° or 2° alcohol with Jones reagent, the chromium ion goes from ___ to ___.

Topic: General, Redox Reagents, Chemical Tests

Section: 12.4

Difficulty Level: Easy

164) The process of converting an alkyl halide to an alkane using LAH is a(n) ___ reaction.

Topic: General, Redox

Section: 12.5

Difficulty Level: Easy

165) Organomagnesium halides are known as ___.

Topic: General

Section: 12.6

Difficulty Level: Easy

166) Compounds that contain carbon-metal bonds are known as ___.

Topic: General

Section: 12.5

Difficulty Level: Easy

167) Key to the usefulness of PCC/CH2Cl2 as a selective oxidant for the production of aldehydes from 1° alcohols is ___.

Topic: General, Redox

Section: 12.4

Difficulty Level: Medium

168) The selective oxidation of a primary alcohol to an aldehyde using oxalyl chloride and DMSO at –60 °C, followed by triethylamine is referred to as the ___ oxidation.

Topic: General, Redox

Section: 12.4

Difficulty Level: Medium

169) Key to the usefulness of Swern oxidation as a selective oxidant for the production of aldehydes from primary alcohols is ___.

Topic: General, Redox

Section: 12.4

Difficulty Level: Medium

Question type: Essay

170) PCC and CrO3 are both Cr(VI) reagents. However, PCC/CH2Cl2 is useful in oxidizing primary alcohols to aldehydes, while the analogous reaction with CrO3/H2SO4 will typically produce carboxylic acids. Why?

Topic: General, Redox

Section: 12.4

Difficulty Level: Medium

Question type: Molecular Drawing

171) Draw the resonance structures that account for esters being less reactive toward NaBH4 than aldehydes or ketones.

Topic: Carbonyl Compounds Resonance Forms

Section: 12.1

Difficulty Level: Medium

172) What would be the major product, A, of the following reaction?

Topic: Multistep Reactions

Section: 12.3

Difficulty Level: Medium

173) Predict the product of the following reaction:

Topic: Reactions, Selective Redox Reactions

Section: 12.3

Difficulty Level: Medium

174) Predict the product(s) of the following reaction sequence:

and

Topic: Reactions, Redox

Section: 12.3

Difficulty Level: Medium

175) Predict the product(s) of the following reaction sequence:

and

Topic: Reactions, Redox

Section: 12.3

Difficulty Level: Medium

176) For the ketone shown, indicate on the appropriate arrow which face is the re face, and which face is si?

Diagram

Description automatically generated

Diagram

Description automatically generated

si

Topic: Reactions, Redox

Section 12.3

Difficulty Level: Medium

177) Which of the following molecules, if any, contains a prochiral carbon?

a) I

b) II

c) III

d) IV

e) All of these choices.

Topic: Carbonyl Compounds, Prochirality, Stereochemistry

Section: 12.3

Difficulty Level: Hard

178) Which of the following molecules, if any, contains a prochiral carbon?

a) I

b) II

c) III

d) IV

e) None of these choices.

Topic: Carbonyl Compounds, Prochirality, Stereochemistry

Section: 12.3

Difficulty Level: Hard

179) For the ketone shown, indicate on the appropriate arrow which face is the re face, and which face is si?

Diagram

Description automatically generated

Diagram

Description automatically generated

re

Topic: Reactions, Redox

Section 12.3

Difficulty Level: Medium

180) For the aldehyde shown, indicate on the appropriate arrow which face is the re face, and which face is si?

Diagram

Description automatically generated

Diagram

Description automatically generated

si

Topic: Reactions, Redox

Section 12.3

Difficulty Level: Medium

181) For the aldehyde shown, indicate on the appropriate arrow which face is the re face, and which face is si?

Diagram, schematic

Description automatically generated

Diagram, schematic

Description automatically generated

re

Topic: Reactions, Redox

Section 12.3

Difficulty Level: Medium

Question type: fill-in-the-blank

182) Primary and secondary alcohols can be distinguished from most other compounds (with the exception of aldehydes) because they will react rapidly with a solution of CrO3 in aqueous sulfuric acid, causing a color change from ___ to ___.

Topic: Functional Group Tests

Section: 12.4

Difficulty Level: Easy

Question type: Essay

183) Diethyl ether, the most commonly used solvent for Grignard reactions, also acts as an ‘internal cooling agent’, preventing the overheating of the reaction mixture: what specific property of diethyl ether is exploited here and why is it important to prevent the overheating of the reaction mixture?

Topic: Synthesis of Grignards and Other Organometallics

Section: 12.6

Difficulty Level: Medium

184) Why can we not prepare a Grignard reagent from a molecule such as 4-bromo-1-butanol?

Topic: Synthesis of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

Question type: fill-in-the-blank

185) The reactivity of organometallic compounds increases with the ___ of the carbon-metal bond.

Topic: Reactivity of Grignards and Other Organometallics

Section: 12.5

Difficulty Level: Easy

186) In a Grignard reagent, the carbon bonded to magnesium has a partial ___ charge and therefore behaves as a(n) ___.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.7

Difficulty Level: Easy

187). A Grignard reagent will produce a primary alcohol when reacted with ___ or___.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

188) A Grignard reagent will produce a secondary alcohol when reacted with ___.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

189) Reaction of an alkyllithium with a ketone produces, after acid work-up, a ___ alcohol.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

190) Reaction of excess methyllithium with ethyl acetate (CH3CO2C2H5) produces, after acid work-up, ___.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

191) Reaction of excess ethyl magnesium bromide with ethyl benzoate (C6H5CO2C2H5) produces, after acid work-up, ___.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

192) Reaction of excess ethyl magnesium iodide with ethyl acetate (CH3CO2C2H5) produces, after acid work-up, ___.

Topic: Reactions of Grignards and Other Organometallics

Section: 12.8

Difficulty Level: Easy

Question type: Essay

193) NH4Cl is sometimes preferred instead of HCl or H2SO4 for “acid” work-up after Grignard reactions, particularly when the expected and desired product is a tertiary alcohol: why?

Topic: Grignard Reactions

Section: 12.8

Difficulty Level: Easy

194) Predict the product(s) of the following reaction sequence:

and

Topic: Reactions, Grignard

Section: 12.8

Difficulty Level: Medium

195) Predict the product(s) of the following reaction sequence:

and

Topic: Reactions, Grignard

Section: 12.8

Difficulty Level: Hard

196) Suggest a reasonable synthetic strategy for the synthesis of 3-ethyl-3-heptanol from pentanoic acid, CH3CH2CH2CH2CO2H.

Topic: Multistep Synthetic Strategy

Section: 12.8

Difficulty Level: Hard

197) Suggest a reasonable synthetic strategy for the synthesis of 4-heptanol from 1-pentene.

Topic: Multistep Synthetic Strategy

Section: 12.7

Difficulty Level: Hard

198) Complete the following reaction sequence, giving structural details of all key intermediates.

4-methyl-1-hexene 

i) BH3, THF

ii) H2O2,NaOH

iii) SOCl2

iv) Mg, Et2O

iv) ethylene oxide

v) NH4Cl

Topic: Multistep Reaction Sequence

Section: 12.7

Difficulty Level: Hard

199) Complete the following reaction sequence, giving structural details of all key intermediates.

1-hexene 

i) HBr

ii) Li

iii) (CH3CH2)2C=O

iv) C2H5I

Topic: Multistep Reaction Sequence

Section: 12.8

Difficulty Level: Hard

200) Complete the following reaction sequence, giving structural details of all key intermediates.

1-hexene 

i) HBr/ROOR

ii) Li

iii) (CH3CH2)2C=O

iv) C2H5I

Topic: Multistep Reaction Sequence

Section: 12.8

Difficulty Level: Hard

201) Complete the following reaction sequence, giving structural details of all key intermediates.

Topic: Multistep Reaction Sequence

Section: 12.8

Difficulty Level: Hard

202) Suggest a reasonable synthetic strategy for the synthesis of 3-methyl-3-hexanol from 3-hexanol.

Topic: Multistep Synthetic Strategy

Section: 12.4 and 12.8

Difficulty Level: Hard

203) Suggest a reasonable synthetic strategy for the synthesis of 2-methyl-3-hexanol from 1-butanol.

Topic: Multistep Synthetic Strategy

Section: 12.4 and 12.8

Difficulty Level: Hard

204) Predict the product(s) of the following reaction sequence:

and

Topic: Multistep Reactions, Grignard

Section: 12.6 and 12.8

Difficulty Level: Medium

205) Predict the product(s) of the following reaction sequence:

and

Topic: Multistep Reactions, Grignard

Section: 12.6 and 12.8

Difficulty Level: Medium

206) Predict the product(s) of the following reaction sequence:

Topic: Multistep Reactions, Grignard

Section: 12.6 and 12.8

Difficulty Level: Medium

207) Predict the product(s) of the following reaction sequence:

Topic: Multistep Reactions, Grignard

Section: 12.6 and 12.8

Difficulty Level: Medium

208) Predict the product(s) of the following reaction sequence:

Topic: Multistep Reactions, Grignard

Section: 12.6 and 12.8

Difficulty Level: Hard

209) Predict the major product(s) of the following reaction sequence:

Topic: Multistep Reactions, Grignard

Section: 12.6 and 12.8

Difficulty Level: Hard

210) Complete the following reaction sequence, giving structural details of all key intermediates.

2-methyl-1-pentene 

i) BH3, THF

ii) H2O2,NaOH

iii) PCC, CH2Cl2

iv) CH3CH2C≡C:Na+

v) NH4Cl

Topic: Multistep Reaction Sequence

Section: 12.8

Difficulty Level: Hard

211) Complete the following reaction sequence, giving structural details of all key intermediates.

2-methyl-1-pentene 

i) BH3, THF

ii) H2O2,NaOH

iii) (COCl)2, DMSO, –60 °C

iv) Et3N

v) CH3CH2C≡C:Na+

vi) NH4Cl

Topic: Multistep Reaction Sequence

Section: 12.8

Difficulty Level: Hard

212) Suggest a reasonable synthetic strategy for the synthesis of 4-methyl-1,4-pentanediol from methyl-4-hydroxybutanoate HOCH2CH2CH2COOCH3.

Topic: Multistep Synthetic Strategy (using protecting groups)

Section: 12.9

Difficulty Level: Hard

213) Suggest a reasonable synthetic strategy for the synthesis of 1,4-pentanediol from 4-hydroxybutanal HOCH2CH2CH2CHO.

Topic: Multistep Synthetic Strategy (using protecting groups)

Section: 12.9

Difficulty Level: Hard

214) Suggest a reasonable synthetic strategy for the synthesis of 4-methyl-1,4-pentanediol from 4-hydroxybutanone HOCH2CH2CH2COCH3.

Topic: Multistep Synthetic Strategy (using protecting groups)

Section: 12.9

Difficulty Level: Hard

215) Predict the product D of the following reaction sequence:

Topic: Multistep Reactions

Section:12.6A and 12.8C

Difficulty Level: Hard

216) Complete the following reaction sequence, giving structural details of all key intermediates.

Bromocyclohexane 

i) Li

ii) CuI

iii) 4-methyl-1-bromohexane

Topic: Multistep Reaction Sequence

Section: 12.6 and 12.8

Difficulty Level: Hard

217) The following transformation would be considered a(n)?

RCHO  RCO2H

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

218) The following transformation would be considered a(n)?

RCH2OH  RCHO

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

219) The following transformation would be considered a(n)?

RCH2OH  RCO2H

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

220) The following transformation would be considered a(n)?

RCH=CH2  RCH2CH3

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

221) The following transformation would be considered a(n)?

RCOOH  RCH2OH

a) Reduction

b) Oxidation

c) Addition

d) Elimination

e) Rearrangement

Topic: Oxidation-Reduction

Section: 12.2

Difficulty Level: Easy

222) What is the major product of the following reaction?

a) 3-hexanol

b) 2-phenyl-2-pentanol

c) 2-ethylpentanoic acid

d) 2-methyl-3-pentanone

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Hard

223) What is the major product of the following reaction?

a) 3-hexanol

b) 2-phenyl-2-pentanol

c) 2-ethylpentanoic acid

d) 2-methyl-3-pentanone

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Hard

224) What is the major product of the following reaction?

a) 3-hexanol

b) 2-phenyl-2-pentanol

c) 2-ethylpentanoic acid

d) 2-methyl-3-pentanone

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Hard

225) What is the major product of the following reaction?

a) 3-hexanol

b) 2-phenyl-2-pentanol

c) 2-ethylpentanoic acid

d) 2-methyl-3-pentanone

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Hard

226) What is the major product of the following reaction?

a) 2-methylbut-3-yn-2-ol

b) 3-propanone

c) 2-propanol

d) but-3-yn-2-ol

e) None of these choices.

Topic: Synthetic Strategy

Section: 12.4 and 12.8

Difficulty Level: Hard

227) What is the major product of the following reaction?

a) 2-methylbut-3-yn-2-ol

b) 3-propanone

c) 2-propanol

d) but-3-yn-2-ol

e) None of these choices.

Topic: Synthetic Strategy

Section: 12.4 and 12.8

Difficulty Level: Hard

228) The reaction of lithium di-iso-butylcuprate with isopentyl bromide yields:

a) 2,5-Dimethylheptane

b) 2,6-Dimethylheptane

c) 3,5-Dimethylheptane

d) 3,4-Dimethylheptane

e) 3,6-Dimethylheptane

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

229) The reaction of lithium dimethylcuprate with 1-bromo-4,4-dimethylhexane yields:

a) 3,3-Dimethylheptane

b) 3,3-Dimethyloctane

c) 1-Ethyl-4,4-dimethylhexane

d) Di-4,4-dimethylhexylcuprate

e) None of these choices.

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

230) The reaction of lithium diethylcuprate with 1-bromo-4,4-dimethylpentane yields:

a) 3,3-Dimethylheptane

b) 3,3-Dimethyloctane

c) 1-Ethyl-4,4-dimethylhexane

d) Di-4,4-dimethylhexylcuprate

e) None of these choices.

Topic: Reactions and Reaction Sequences

Section: 12.6 and 12.8

Difficulty Level: Hard

231) What is the major product of the following reaction?

a) 4-methylpentanol

b) 5-methylhexanol

c) 1-phenylethanol

d) pentanol

e) heptanol

Topic: Synthetic Strategy

Section: 12.3 and 12.7

Difficulty Level: Medium

232) What is the major product of the following reaction?

a) 4-methylpentanol

b) 5-methylhexanol

c) 1-phenylethanol

d) pentanol

e) heptanol

Topic: Synthetic Strategy

Section: 12.3 and 12.7

Difficulty Level: Medium

233) What is the major product of the following reaction?

a) 4-methylpentanol

b) 5-methylhexanol

c) 1-phenylethanol

d) pentanol

e) heptanol

Topic: Synthetic Strategy

Section: 12.3 and 12.7

Difficulty Level: Medium

234) What is the major product of the following reaction?

a) 4-methylpentanol

b) 5-methylhexanol

c) 1-phenylethanol

d) pentanol

e) heptanol

Topic: Synthetic Strategy

Section: 12.3 and 12.7

Difficulty Level: Medium

235) What is the major product of the following reaction?

a) 4-methylpentanol

b) 5-methylhexanol

c) 1-phenylethanol

d) pentanol

e) heptanol

Topic: Synthetic Strategy

Section: 12.3 and 12.7

Difficulty Level: Medium

236) What is the major product of the following reaction?

a) 2-phenyl-2-butanol

b) 2-phenyl-1-butanol

c) 1-phenyl-2-butanol

d) 1-phenyl-1-butanol

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

237) What is the major product of the following reaction?

a) 2-phenyl-2-butanol

b) 2-phenyl-1-butanol

c) 1-phenyl-2-butanol

d) 1-phenyl-1-butanol

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

238) What is the major product of the following reaction?

a) 2-phenyl-2-butanol

b) 2-phenyl-1-butanol

c) 1-phenyl-2-butanol

d) 1-phenyl-1-butanol

e) None of these choices.

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

239) What is the major product of the following reaction?

a) 2-phenyl-2-hexanol

b) 3-phenyl-3-hexanol

c) 4-phenyl-4-heptanol

d) 7-methyl-4-octanol

e) 5-methyl-3-propyl-2-heptanol

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

240) What is the major product of the following reaction?

a) 2-phenyl-2-hexanol

b) 3-phenyl-3-hexanol

c) 4-phenyl-4-heptanol

d) 7-methyl-4-octanol

e) 5-methyl-3-propyl-2-heptanol

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

241) What is the major product of the following reaction?

a) 2-phenyl-2-hexanol

b) 3-phenyl-3-hexanol

c) 4-phenyl-4-heptanol

d) 7-methyl-4-octanol

e) 5-methyl-3-propyl-2-heptanol

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

242) What is the major product of the following reaction?

a) 2-phenyl-2-hexanol

b) 3-phenyl-3-hexanol

c) 4-phenyl-4-heptanol

d) 7-methyl-4-octanol

e) 5-methyl-3-propyl-2-heptanol

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

243) What is the major product of the following reaction?

a) 2-phenyl-2-hexanol

b) 3-phenyl-3-hexanol

c) 4-phenyl-4-heptanol

d) 7-methyl-4-octanol

e) 5-methyl-3-propyl-2-heptanol

Topic: Synthetic Strategy, Stereochemistry

Section: 12.8

Difficulty Level: Medium

Document Information

Document Type:
DOCX
Chapter Number:
12
Created Date:
Aug 21, 2025
Chapter Name:
Chapter 12 Carbonyl, Alcohol, Redox
Author:
Graham Solomons

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