Question 1

Draw the Haworth projection for $\beta$-D-erythrofuranose.

Accepted Answer

The answer of Draw the Haworth projection for $\beta$-D-erythrofuranose....

Question 2

Identify the monosaccharide(s) in $\beta$-cellobiose.

Accepted Answer

two @#LAT-DLM&-D-glu

Question 3

Identify the monomer in glycogen.

Accepted Answer

A)  ($\alpha$-D-glucose) 
B)  ($\beta$-D-glucose) 
C)  ($\alpha$-D-galactose) 
D)  ($\beta$-D-fructose) 
E)  maltose 
A)  ($\alpha$-D-glucose) 
B)  ($\beta$-D-glucose) 
C)  ($\alpha$-D-galactose) 
D)  ($\beta$-D-fructose) 
E)  maltose

Question 4

Predict the product(s) when $\alpha$-D-glucose is treated with methanamine in the presence of acid.

Accepted Answer

The answer of Predict the product(s) when $\alpha$-D-glucose is treated...

Question 5

Which one of the following is a correct structure for sucrose?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 6

Provide the reagents necessary to carry out the following Kiliani-Fischer synthesis.

Accepted Answer

A)  1. HCN
2) H2/Pd/BaSO4/H2O 
B)  1. NaBH4/H2O
2) CH3OH/HCl 
C)  excess CH3I/Ag2O 
D)  1. NH2OH
2) acetic anhydride
3) NaOCH3 
E)  1. Br2/H2O
2) NaBH4/H2O 
A)  1. HCN
2) H2/Pd/BaSO4/H2O 
B)  1. NaBH4/H2O
2) CH3OH/HCl 
C)  excess CH3I/Ag2O 
D)  1. NH2OH
2) acetic anhydride
3) NaOCH3 
E)  1. Br2/H2O
2) NaBH4/H2O

Question 7

Predict the product(s) for the following reaction.

Accepted Answer

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

Question 8

A monosaccharide with six carbon atoms and an aldehyde functional group is called a(n) _____.

Accepted Answer

A)  hexose 
B)  ketohexose 
C)  aldohexose 
D)  ketoheptose 
E)  ketose 
A)  hexose 
B)  ketohexose 
C)  aldohexose 
D)  ketoheptose 
E)  ketose

Question 9

How many stereoisomers are possible for fructose?

Accepted Answer

A)  8 
B)  6 
C)  10 
D)  3 
E)  4 
A)  8 
B)  6 
C)  10 
D)  3 
E)  4

Question 10

When D-erythrose is treated with NaBH4/H2O, it forms _______.

Accepted Answer

A)  a racemic mixture of alditols 
B)  a meso alditol 
C)  an optically active alditol 
D)  an optically active aldonic acid 
E)  none of these 
A)  a racemic mixture of alditols 
B)  a meso alditol 
C)  an optically active alditol 
D)  an optically active aldonic acid 
E)  none of these

Question 11

Predict the major product for the following reaction.

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 12

Which of the following best describes L-galactose?

Accepted Answer

A)  aldopentose 
B)  aldohexose 
C)  ketopentose 
D)  ketohexose 
E)  aldotetrose 
A)  aldopentose 
B)  aldohexose 
C)  ketopentose 
D)  ketohexose 
E)  aldotetrose

Question 13

A glycoside is formed from D-glucopyranose by alkylated the -OH attached to _____.

Accepted Answer

A)  C-1 
B)  C-2 
C)  C-3 
D)  C-4 
E)  C-5 
A)  C-1 
B)  C-2 
C)  C-3 
D)  C-4 
E)  C-5

Question 14

Predict the product(s) when maltose is treated with NaBH4/H2O.

Accepted Answer

@#IMG-DLM&_TB4454_00

Question 15

Provide the reagents necessary to carry out the following conversion.

Accepted Answer

A)  Br2/H2O 
B)  NaOH/H2O 
C)  HNO3 
D)  Ag+/NH3/H2O 
E)  A and D 
A)  Br2/H2O 
B)  NaOH/H2O 
C)  HNO3 
D)  Ag+/NH3/H2O 
E)  A and D

Question 16

Which of the following compound(s) would give a positive Tollens test?

Accepted Answer

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

Question 17

Which of the following is a ketohexose?

Accepted Answer

A)  D-lyxose 
B)  D-fructose 
C)  D-ribose 
D)  D-glucose 
E)  D-xylulose 
A)  D-lyxose 
B)  D-fructose 
C)  D-ribose 
D)  D-glucose 
E)  D-xylulose

Question 18

Degradation of synthetic glucose produces _________that is ________.

Accepted Answer

A)  glyceraldehyde, dextrorotatory 
B)  glyceraldehyde, levorotatory 
C)  glyceraldehyde, both dextrorotatory and levorotatory 
D)  none of these 
A)  glyceraldehyde, dextrorotatory 
B)  glyceraldehyde, levorotatory 
C)  glyceraldehyde, both dextrorotatory and levorotatory 
D)  none of these

Question 19

Which of the following compounds would produce an optically active aldaric acid?

Accepted Answer

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

Question 20

D-ribulose and D-xylulose are ______ epimers of each other.

Accepted Answer

A)  C-1 
B)  C-2 
C)  C-3 
D)  C-4 
E)  C-5 
A)  C-1 
B)  C-2 
C)  C-3 
D)  C-4 
E)  C-5

Exam 24: Carbohydrates

Draw the Haworth projection for β\betaβ -D-erythrofuranose.

Identify the monosaccharide(s) in β\betaβ -cellobiose.

Identify the monomer in glycogen.

Predict the product(s) when α\alphaα -D-glucose is treated with methanamine in the presence of acid.

Which one of the following is a correct structure for sucrose?

Provide the reagents necessary to carry out the following Kiliani-Fischer synthesis.

Predict the product(s) for the following reaction.

A monosaccharide with six carbon atoms and an aldehyde functional group is called a(n) _____.

How many stereoisomers are possible for fructose?

When D-erythrose is treated with NaBH4/H2O, it forms _______.

Predict the major product for the following reaction.

Which of the following best describes L-galactose?

A glycoside is formed from D-glucopyranose by alkylated the -OH attached to _____.

Predict the product(s) when maltose is treated with NaBH4/H2O.

Provide the reagents necessary to carry out the following conversion.

Which of the following compound(s) would give a positive Tollens test?

Which of the following is a ketohexose?

Degradation of synthetic glucose produces _________that is ________.

Which of the following compounds would produce an optically active aldaric acid?

D-ribulose and D-xylulose are ______ epimers of each other.

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Draw the Haworth projection for $\beta$ -D-erythrofuranose.

Identify the monosaccharide(s) in $\beta$ -cellobiose.

Predict the product(s) when $\alpha$ -D-glucose is treated with methanamine in the presence of acid.

When D-erythrose is treated with NaBH₄/H₂O, it forms _______.

Predict the product(s) when maltose is treated with NaBH₄/H₂O.

Degradation of synthetic glucose produces _that is .