Question 1

Which of the following statements about carbohydrates is not true?

Accepted Answer

A) Carbohydrates are sugars and starches. 
B) Carbohydrates often contain acetals and hemiacetals. 
C) In solution,glucose is in the cyclic acetal form only. 
D) Glucose can form a cyclic hemiacetal from the acyclic polyhydroxy aldehyde. 
A) Carbohydrates are sugars and starches. 
B) Carbohydrates often contain acetals and hemiacetals. 
C) In solution,glucose is in the cyclic acetal form only. 
D) Glucose can form a cyclic hemiacetal from the acyclic polyhydroxy aldehyde.

Question 2

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 3

What is the structure of benzophenone?

Accepted Answer

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

Question 4

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 5

Give the IUPAC name for the following compound.

Accepted Answer

A) R-3-methylcyclohexanone 
B) S-3-methylcyclohexanone 
C) R-5-methylcyclohexanone 
D) S-5-methylcyclohexanone 
A) R-3-methylcyclohexanone 
B) S-3-methylcyclohexanone 
C) R-5-methylcyclohexanone 
D) S-5-methylcyclohexanone

Question 6

Identify how you could synthesize an enamine.

Accepted Answer

A) React a ketone or an aldehyde with a secondary amine. 
B) React a ketone or an aldehyde with a primary amine. 
C) React a ylide with a primary amine. 
D) React a ylide with a secondary amine. 
A) React a ketone or an aldehyde with a secondary amine. 
B) React a ketone or an aldehyde with a primary amine. 
C) React a ylide with a primary amine. 
D) React a ylide with a secondary amine.

Question 7

What is the structure of 2-trifluoromethyl-2-methoxybutanal?

Accepted Answer

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

Question 8

What is the missing reagent in the reaction below?

Accepted Answer

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

Question 9

Why can't you use acidic conditions (such as aqueous hydrochloric acid)for the addition of a Grignard reagent to a ketone?

Accepted Answer

A) Because the Grignard reagent will react with the acid and be quenched 
B) Because the ketone will be protonated and thus unreactive 
C) Because the ketone will form an unreactive enol 
D) Because the Grignard reagent won't dissolve in aqueous solutions 
A) Because the Grignard reagent will react with the acid and be quenched 
B) Because the ketone will be protonated and thus unreactive 
C) Because the ketone will form an unreactive enol 
D) Because the Grignard reagent won't dissolve in aqueous solutions

Question 10

What is (are)the product(s)of the following reaction?

Accepted Answer

A) I only 
B) II only 
C) III only 
D) II and III 
A) I only 
B) II only 
C) III only 
D) II and III

Question 11

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 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

Exam 18: Aldehydes and Ketones - Nucleophilic Addition

Which of the following statements about carbohydrates is not true?

What is the product of the following reaction?

What is the structure of benzophenone?

What is the product of the following reaction?

Give the IUPAC name for the following compound.

Identify how you could synthesize an enamine.

What is the structure of 2-trifluoromethyl-2-methoxybutanal?

What is the missing reagent in the reaction below?

Why can't you use acidic conditions (such as aqueous hydrochloric acid)for the addition of a Grignard reagent to a ketone?

What is (are)the product(s)of the following reaction?

What is the product of the following reaction?

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

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

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

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