Question 1

Which of the following sugars can be classified as a ketopentose?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 2

Which of the following is D-glucose?

Accepted Answer

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

Question 3

Which of the following is a polysaccharide?

Accepted Answer

A) Cellulose 
B) Starch 
C) Glycogen 
D) All of these choices are correct 
A) Cellulose 
B) Starch 
C) Glycogen 
D) All of these choices are correct

Question 4

Which of the following sugars can be classified as an aldohexose?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 5

From the sugars shown below,which one will not give a positive test with Tollens reagent?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 6

Which is the correct Haworth projection for the aanomer of allose?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 7

Upon hydrolysis of amylopectin,what sugar is formed?

Accepted Answer

A) Sucrose 
B) Maltose 
C) Lactose 
D) Glucose 
A) Sucrose 
B) Maltose 
C) Lactose 
D) Glucose

Question 8

Is the following carbohydrate D or L? Provide an explanation for your answer.

Accepted Answer

A) It is D because the OH group on C2 is on the right. 
B) It is L because the OH group on C4 is on the left. 
C) It is L because the OH group on C3 is on the left. 
D) It is D because the sugar is not symmetric. 
A) It is D because the OH group on C2 is on the right. 
B) It is L because the OH group on C4 is on the left. 
C) It is L because the OH group on C3 is on the left. 
D) It is D because the sugar is not symmetric.

Question 9

Which of the following reagents will selectively oxidize an aldose to an aldonic acid?

Accepted Answer

A) PCC 
B) Ag2O in NH4OH 
C) FeCl3 
D) HNO3 
A) PCC 
B) Ag2O in NH4OH 
C) FeCl3 
D) HNO3

Question 10

Which of the following compounds is not a valid representation for D-glucose?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Exam 26: Carbohydrates

Which of the following sugars can be classified as a ketopentose?

Which of the following is D-glucose?

Which of the following is a polysaccharide?

Which of the following sugars can be classified as an aldohexose?

From the sugars shown below,which one will not give a positive test with Tollens reagent?

Which is the correct Haworth projection for the aanomer of allose?

Upon hydrolysis of amylopectin,what sugar is formed?

Is the following carbohydrate D or L? Provide an explanation for your answer.

Which of the following reagents will selectively oxidize an aldose to an aldonic acid?

Which of the following compounds is not a valid representation for D-glucose?

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

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

Amino Acids and Proteins

Synthetic Polymers

Lipids

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

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