Question 1

Give the name for the following compound.

Accepted Answer

A) 4-O-(a-D-glucopyranosyl)-a-D-glucopyranose 
B) 4-O-(a-D-glucopyranosyl)-b-D-glucopyranose 
C) 4-O-(b-D-glucopyranosyl)- a-D-glucopyranose 
D) 4-O-(b-D-glucopyranosyl)- b-D-glucopyranose 
E) 4-O-(b-D-galactopyranosyl)-a-D-glucopyranose 
A) 4-O-(a-D-glucopyranosyl)-a-D-glucopyranose 
B) 4-O-(a-D-glucopyranosyl)-b-D-glucopyranose 
C) 4-O-(b-D-glucopyranosyl)- a-D-glucopyranose 
D) 4-O-(b-D-glucopyranosyl)- b-D-glucopyranose 
E) 4-O-(b-D-galactopyranosyl)-a-D-glucopyranose

Question 2

Give the major product(s)for the following reaction.

Accepted Answer

A) no reaction 
B)    
C)    
D)    
E)    
A) no reaction 
B)    
C)    
D)    
E)

Question 3

Give the common name for the following structure.

Accepted Answer

a-D-glucop

Question 4

Why is β-D-glucopyranose more stable in nature than α-D-glucopyranose?

Accepted Answer

The five hydroxy groups in β-D-glucopyra

Question 5

What is the main structural difference between amylose and cellulose?

Accepted Answer

The main difference is that am

Question 6

Which of the following statements best describes the meaning of a glycoside?

Accepted Answer

A) It is the mirror image of a sugar. 
B) It is the hemiacetal of a sugar. 
C) It is the acetal of a sugar. 
D) It is the enantiomer of a sugar. 
E) It is the enol-keto form of a sugar. 
A) It is the mirror image of a sugar. 
B) It is the hemiacetal of a sugar. 
C) It is the acetal of a sugar. 
D) It is the enantiomer of a sugar. 
E) It is the enol-keto form of a sugar.

Question 7

How many chirality centers are there in a 2-ketohexose?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 8

Which of the following monosaccharides will form D-glucaric acid upon oxidation with nitric acid?

Accepted Answer

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

Question 9

Six-membered cyclic hemiacetals and five-membered cyclic hemiacetals are called, respectively, ________.

Accepted Answer

A) mannoses and xyloses 
B) maltoses and arabinoses 
C) pyranoses and fructoses 
D) glycoses and fructoses 
E) none of the above 
A) mannoses and xyloses 
B) maltoses and arabinoses 
C) pyranoses and fructoses 
D) glycoses and fructoses 
E) none of the above

Question 10

Which of the following statements regarding methyl-β-L-glucopyranoside is correct?

Accepted Answer

A) This glycoside is a reducing sugar. 
B) This glycoside undergoes mutorotation in aqueous base. 
C) This glycoside will undergo no reaction when treated with excess CH3I/Ag2O. 
D) This glycoside will be hydrolyzed to the cyclic hemiacetal in dilute aqueous acid. 
E) This glycoside will readily undergo Kiliani-Fischer chain elongation. 
A) This glycoside is a reducing sugar. 
B) This glycoside undergoes mutorotation in aqueous base. 
C) This glycoside will undergo no reaction when treated with excess CH3I/Ag2O. 
D) This glycoside will be hydrolyzed to the cyclic hemiacetal in dilute aqueous acid. 
E) This glycoside will readily undergo Kiliani-Fischer chain elongation.

Question 11

Give the product(s)for each step of the following reaction.

Accepted Answer

The answer of Give the product(s)for each step of the...

Question 12

Give the major product(s)for the following reaction.

Accepted Answer

A) no reaction 
B)    
C)    
D)    
E)    
A) no reaction 
B)    
C)    
D)    
E)

Question 13

Which of the following is the Haworth projection of β-D-galactopyranose?

Accepted Answer

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

Question 14

Given the structure of D-altrose below, provide the Haworth structure of β-D-altropyranose.

Accepted Answer

The answer of Given the structure of D-altrose below, provide...

Question 15

All chiral D-sugars rotate plane-polarized light ________.

Accepted Answer

A) clockwise 
B) counterclockwise 
C) +20.0° 
D) in a direction that cannot be predicted but must be determined experimentally 
E) since they are optically inactive 
A) clockwise 
B) counterclockwise 
C) +20.0° 
D) in a direction that cannot be predicted but must be determined experimentally 
E) since they are optically inactive

Question 16

The open-chain form of D-idose is shown below. Draw the Haworth projection of a-D-idopyranose.

Accepted Answer

The answer of The open-chain form of D-idose is shown...

Question 17

Draw the Haworth structure of β-D-glucopyranose

Accepted Answer

The answer of Draw the Haworth structure of β-D-glucopyranose...

Question 18

A pyranose with the hydroxyl group on the anomeric carbon pointing up in the Haworth structure is designated ________.

Accepted Answer

A) a' 
B) b' 
C) α 
D) β 
E) f 
A) a' 
B) b' 
C) α 
D) β 
E) f

Question 19

When D-tagatose is added to a basic aqueous solution, an equilibrium mixture of three monosaccharides is obtained. Identify the monosaccharides.

Accepted Answer

@#IMG-DLM&_TB1830_00 Therefore

Question 20

Provide the major organic product(s)of the reaction shown.

Accepted Answer

The answer of Provide the major organic product(s)of the reaction...

Exam 21: Carbohydrates

Give the name for the following compound.

Give the major product(s)for the following reaction.

Give the common name for the following structure.

Why is β-D-glucopyranose more stable in nature than α-D-glucopyranose?

What is the main structural difference between amylose and cellulose?

Which of the following statements best describes the meaning of a glycoside?

How many chirality centers are there in a 2-ketohexose?

Which of the following monosaccharides will form D-glucaric acid upon oxidation with nitric acid?

Six-membered cyclic hemiacetals and five-membered cyclic hemiacetals are called, respectively, ________.

Which of the following statements regarding methyl-β-L-glucopyranoside is correct?

Give the product(s)for each step of the following reaction.

Give the major product(s)for the following reaction.

Which of the following is the Haworth projection of β-D-galactopyranose?

Given the structure of D-altrose below, provide the Haworth structure of β-D-altropyranose.

All chiral D-sugars rotate plane-polarized light ________.

The open-chain form of D-idose is shown below. Draw the Haworth projection of a-D-idopyranose.

Draw the Haworth structure of β-D-glucopyranose

A pyranose with the hydroxyl group on the anomeric carbon pointing up in the Haworth structure is designated ________.

When D-tagatose is added to a basic aqueous solution, an equilibrium mixture of three monosaccharides is obtained. Identify the monosaccharides.

Provide the major organic product(s)of the reaction shown.

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds

Isomers: the Arrangement of Atoms in Space

Alkenes Thermodynamics and Kinetics

Reactions of Alkenes

Reactions of Alkynes Introduction to Multistep Synthesis

Electron Delocalization, Resonance, and Aromaticity More About Molecular Orbital Theory

Substitution Reactions of Alkyl Halides

Elimination Reactions of Alkyl Halides Competition Between Substitution and Elimination

Reactions of Alcohols, Ethers, Epoxides, and Sulfur-Containing Compounds

Organometallic Compounds

Reactions of Alkanes, Radicals

Mass Spectrometry, Infrared Spectroscopy, and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Alpha Carbon of Carbonyl Compounds

Reactions of Benzene and Substituted Benzenes

More About Amines Heterocylic Compounds

Amino Acids, Peptides, and Proteins

Catalysis

The Organic Mechanisms of the Coenzymes

The Chemistry of Metabolism

Nucleosides, Nucleotides, and Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

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