Question 1

What is the major organic product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV B

Question 2

What is the major organic product in the following sequence of reactions?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV B

Question 3

What is the major organic product in the following sequence of reactions?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV D

Question 4

Both LiAlH4 and NaBH4 are reducing agents.Which statement about these reagents is true?

Accepted Answer

A) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is greater than the polarity of the Al-H bond,so LiAlH4 is the stronger reducing agent. 
B) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is greater than the polarity of the Al-H bond,so LiAlH4 is the weaker reducing agent. 
C) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is less than the polarity of the Al-H bond,so LiAlH4 is the stronger reducing agent. 
D) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is less than the polarity of the Al-H bond,so LiAlH4 is the weaker reducing agent. 
A) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is greater than the polarity of the Al-H bond,so LiAlH4 is the stronger reducing agent. 
B) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is greater than the polarity of the Al-H bond,so LiAlH4 is the weaker reducing agent. 
C) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is less than the polarity of the Al-H bond,so LiAlH4 is the stronger reducing agent. 
D) Both reagents contain polar metal-hydrogen bonds.The polarity of the B-H bond is less than the polarity of the Al-H bond,so LiAlH4 is the weaker reducing agent.

Question 5

What is the major product from the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 6

What is the major organic product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 7

Rank the following compounds in order of decreasing reactivity in nucleophilic addition reactions,starting with the most reactive compound.

Accepted Answer

A) III > I > IV > II 
B) II > IV > I > III 
C) IV > II > III > I 
D) II > IV > III > I 
A) III > I > IV > II 
B) II > IV > I > III 
C) IV > II > III > I 
D) II > IV > III > I

Question 8

What is the missing reagent in the reaction below?

Accepted Answer

A) NaBH4/CH3OH 
B) H2,Pd-C 
C) LiAlH4 then H2O 
D) MeMgBr then H2O 
A) NaBH4/CH3OH 
B) H2,Pd-C 
C) LiAlH4 then H2O 
D) MeMgBr then H2O

Question 9

Which reagent can be used to reduce an acid chloride to an aldehyde?

Accepted Answer

A) NaBH4 
B) LiAlH(OtBu)3 
C) LiAlH4 
D) FeCl3 
A) NaBH4 
B) LiAlH(OtBu)3 
C) LiAlH4 
D) FeCl3

Question 10

What is the major organic product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 11

What is the missing reagent in the reaction below?

Accepted Answer

A) PhMgBr then H2O 
B) Benzene,AlCl3 
C) Ph2CuLi then H2O 
D) PhLi then H2O 
A) PhMgBr then H2O 
B) Benzene,AlCl3 
C) Ph2CuLi then H2O 
D) PhLi then H2O

Question 12

What is the product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 13

What is the major organic product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 14

Why are ketones less reactive than aldehydes?

Accepted Answer

A) Ketones are more sterically hindered 
B) Ketones are less electron deficient due to donation from the two alkyl groups 
C) The statement is false; ketones are more reactive than aldehydes 
D) Both Ketones are more sterically hindered and Ketones are less electron deficient due to donation from the two alkyl groups 
A) Ketones are more sterically hindered 
B) Ketones are less electron deficient due to donation from the two alkyl groups 
C) The statement is false; ketones are more reactive than aldehydes 
D) Both Ketones are more sterically hindered and Ketones are less electron deficient due to donation from the two alkyl groups

Question 15

What reagent would be used to reduce an amide to an amine?

Accepted Answer

A) NaBH4 
B) LiAlH(OtBu)3 
C) LiAlH4 
D) FeCl3 
A) NaBH4 
B) LiAlH(OtBu)3 
C) LiAlH4 
D) FeCl3

Question 16

What is the product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 17

A carbonyl group,C=O,and an alkene,C=C,double bonds are both sp2 hybridized.However,the chemistry of these two functional groups is very different.This can be explained by which of the following statements?

Accepted Answer

A) The bond angle of the carbonyl is larger than the bond angle of the alkene. 
B) The electronegative oxygen of the C=O group makes this bond polar. 
C) The bond of the C=C is longer that the bond of the C=O. 
D) There is more steric crowding in the carbonyl than in the alkene. 
A) The bond angle of the carbonyl is larger than the bond angle of the alkene. 
B) The electronegative oxygen of the C=O group makes this bond polar. 
C) The bond of the C=C is longer that the bond of the C=O. 
D) There is more steric crowding in the carbonyl than in the alkene.

Question 18

What is the product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 19

What are the two steps in a nucleophilic addition mechanism?

Accepted Answer

A) Nucleophilic attack followed by protonation 
B) Nucleophilic attack followed by deprotonation 
C) Nucleophilic attack followed by substitution 
D) Nucleophilic attack followed by elimination 
A) Nucleophilic attack followed by protonation 
B) Nucleophilic attack followed by deprotonation 
C) Nucleophilic attack followed by substitution 
D) Nucleophilic attack followed by elimination

Question 20

What is the product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Exam 17: Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

What is the major organic product of the following reaction?

What is the major organic product in the following sequence of reactions?

What is the major organic product in the following sequence of reactions?

Both LiAlH4 and NaBH4 are reducing agents.Which statement about these reagents is true?

What is the major product from the following reaction?

What is the major organic product of the following reaction?

Rank the following compounds in order of decreasing reactivity in nucleophilic addition reactions,starting with the most reactive compound.

What is the missing reagent in the reaction below?

Which reagent can be used to reduce an acid chloride to an aldehyde?

What is the major organic product of the following reaction?

What is the missing reagent in the reaction below?

What is the product of the following reaction?

What is the major organic product of the following reaction?

Why are ketones less reactive than aldehydes?

What reagent would be used to reduce an amide to an amine?

What is the product of the following reaction?

A carbonyl group,C=O,and an alkene,C=C,double bonds are both sp2 hybridized.However,the chemistry of these two functional groups is very different.This can be explained by which of the following statements?

What is the product of the following reaction?

What are the two steps in a nucleophilic addition mechanism?

What is the product of the following reaction?

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Alkynes and Synthesis

Oxidation and Reduction

Radical Reactions

Conjugation, resonance, and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives - Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Synthetic Polymers

Lipids

Molecular Ion Peaks and Fragmentation Patterns

Analyzing Molecular Motion and Infrared Spectroscopy

Organic Spectroscopy Concepts

Filters

Both LiAlH₄ and NaBH₄ are reducing agents.Which statement about these reagents is true?

A carbonyl group,C=O,and an alkene,C=C,double bonds are both sp² hybridized.However,the chemistry of these two functional groups is very different.This can be explained by which of the following statements?