Question 1

Which of the following represent an aldose?

Accepted Answer

A) only 1 and 2 
B) only 1 and 3 
C) only 2 and 3 
D) 1, 2 and 3 
A) only 1 and 2 
B) only 1 and 3 
C) only 2 and 3 
D) 1, 2 and 3 B

Question 2

The textile rayon is produced by treatment of cellulose with carbon disulfide in aqueous sodium hydroxide. What type of functional group is introduced on the cellulose under these conditions?

Accepted Answer

a sodium xanthate salt

Question 3

What are the major organic products obtained from treatment of a methyl glycoside with periodic acid in water?

Accepted Answer

The answer of What are the major organic products obtained...

Question 4

Consider the following structures.   Answer the following questions by placing the appropriate number or indicated letter in the blank.
-The number of hydroxyl groups in the pyranose form of glucose is _____.

Accepted Answer

The answer of Consider the following structures.   Answer...

Question 5

Refer to the equilibrium below to answer the following question(s).  
-The enantiomer of ribose is drawn is _______. (D or L)

Accepted Answer

The answer of Refer to the equilibrium below to answer...

Question 6

Which of the following has a D-configuration?

Accepted Answer

A) only 1 and 2 
B) only 1 and 3 
C) only 2 and 3 
D) only 1, 2 and 3 
A) only 1 and 2 
B) only 1 and 3 
C) only 2 and 3 
D) only 1, 2 and 3

Question 7

Reduction of an optically active aldopentose with NaBH4 gives an optically inactive alditol. The aldopentose could be:

Accepted Answer

A) True 
 B)False

Question 8

Which of the following has a D-configuration?

Accepted Answer

A) only 1 and 2 
B) only 1 and 3 
C) only 2 and 3 
D) only 1, 2 and 3 
A) only 1 and 2 
B) only 1 and 3 
C) only 2 and 3 
D) only 1, 2 and 3

Question 9

What is the major organic product obtained from the following reduction of glucose?

Accepted Answer

The answer of What is the major organic product obtained...

Question 10

Refer to the equilibrium below to answer the following question(s).  
-The anomer of ribose is drawn is _______. (alpha or beta)

Accepted Answer

The answer of Refer to the equilibrium below to answer...

Question 11

Consider the following structures.   Answer the following questions by placing the appropriate number or indicated letter in the blank.
-The number of the anomeric carbon in the following structure is _____.

Accepted Answer

The answer of Consider the following structures.   Answer...

Question 12

Consider the structure shown below.   The Haworth projection formula for the pyranose form of $\beta$-D-galactose is given below.

Accepted Answer

A) True 
 B)False

Question 13

What are the major organic products obtained from treatment of a 1,2,3-triol with periodic acid in water?

Accepted Answer

The answer of What are the major organic products obtained...

Question 14

Consider the following structures.   Answer the following questions by placing the appropriate number or indicated letter in the blank.
-Structure ____ represents a aldopentose.

Accepted Answer

The answer of Consider the following structures.   Answer...

Question 15

The following compound will react with Tollens' solution.

Accepted Answer

A) True 
 B)False

Question 16

Consider the following Fisher projections.   They all convert to the same tetrahedral representation as shown below..

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not a polysaccharide?

Accepted Answer

A) amylose 
B) amylopectin 
C) glycogen 
D) ribulose 
A) amylose 
B) amylopectin 
C) glycogen 
D) ribulose

Question 18

Oxidation of optically active D-erythrose with nitric acid produces optically inactive meso-tartaric acid (below).   The structure of D-erythrose is shown below.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following represents a furanose?

Accepted Answer

A) only 1 
B) only 2 
C) only 3 
D) only 2 and 3 
A) only 1 
B) only 2 
C) only 3 
D) only 2 and 3

Question 20

The textile cellulose acetate is produced by treatment of cellulose with acetic anhydride. What type of functional group is introduced on the cellulose under these conditions?

Accepted Answer

@#IMG-DLM&_TB1813_00

Exam 25: Carbohydrates

Which of the following represent an aldose?

The textile rayon is produced by treatment of cellulose with carbon disulfide in aqueous sodium hydroxide. What type of functional group is introduced on the cellulose under these conditions?

What are the major organic products obtained from treatment of a methyl glycoside with periodic acid in water?

Consider the following structures. Answer the following questions by placing the appropriate number or indicated letter in the blank. -The number of hydroxyl groups in the pyranose form of glucose is _____.

Refer to the equilibrium below to answer the following question(s). -The enantiomer of ribose is drawn is _______. (D or L)

Which of the following has a D-configuration?

Reduction of an optically active aldopentose with NaBH4 gives an optically inactive alditol. The aldopentose could be:

Which of the following has a D-configuration?

What is the major organic product obtained from the following reduction of glucose?

Refer to the equilibrium below to answer the following question(s). -The anomer of ribose is drawn is _______. (alpha or beta)

Consider the following structures. Answer the following questions by placing the appropriate number or indicated letter in the blank. -The number of the anomeric carbon in the following structure is _____.

Consider the structure shown below. The Haworth projection formula for the pyranose form of β\betaβ -D-galactose is given below.

What are the major organic products obtained from treatment of a 1,2,3-triol with periodic acid in water?

Consider the following structures. Answer the following questions by placing the appropriate number or indicated letter in the blank. -Structure ____ represents a aldopentose.

The following compound will react with Tollens' solution.

Consider the following Fisher projections. They all convert to the same tetrahedral representation as shown below..

Which of the following is not a polysaccharide?

Oxidation of optically active D-erythrose with nitric acid produces optically inactive meso-tartaric acid (below). The structure of D-erythrose is shown below.

Which of the following represents a furanose?

The textile cellulose acetate is produced by treatment of cellulose with acetic anhydride. What type of functional group is introduced on the cellulose under these conditions?

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

Reduction of an optically active aldopentose with NaBH₄ gives an optically inactive alditol. The aldopentose could be: