Question 1

Which of the following is a reducing sugar?

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) A) and C)
F) A) and B)

Question 2

What is the correct chair form for the  anomer of D-glucose?  anomer of D-glucose?   A)  A B)  B C)  C D)  D" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) A) and D)
F) A) and C)

Question 3

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)   HNO3E) All of the above
F) B) and C)

Question 4

The branching units in amylopectin, a polysaccharide, which enable this molecule to be water soluble are connected with __________________________ linkages.

Accepted Answer

A)   "-1,4'-glycosidic"
B)   "-1,4'-glycosidic"
C)   "-1,6'-glycosidic"
D)   "-1,6'-glycosidic"E) None of the above
F) All of the above

Question 5

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

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and D)
G) A) and E)

Question 6

Which of the following best describes the relationship between D-glucose and D-fructose?

Accepted Answer

A)   enantiomers
B)   epimers
C)   anomers
D)   constitutional isomersE) A) and D)
F) A) and C)

Question 7

Which is the correct Haworth projection for the  anomer of allose?  anomer of allose?   A)  A B)  B C)  C D)  D" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) All of the above
F) B) and C)

Question 8

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)   DE) A) and D)
F) B) and C)

Question 9

Which of the following compounds is an aldose?

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) B) and C)
F) A) and D)

Question 10

Which of the following reagents would convert glucose into ethyl glucopyranoside?

Accepted Answer

A)   EtBr, aq. HCl
B)   EtOH, aq. HCl
C)   EtOH, NaOH
D)   Ag2O in NH4OHE) B) and D)
F) A) and C)

Question 11

What is the process called for the interconversion of one anomer to the other?

Accepted Answer

A)   racemization
B)   mutarotation
C)   epimerization
D)   enolizationE) C) and D)
F) B) and D)

Question 12

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

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) B) and D)
F) C) and D)

Question 13

From the disaccharides listed below, which one will not undergo mutarotation?

Accepted Answer

A)   sucrose
B)   maltose
C)   lactose
D)   xylobioseE) B) and C)
F) A) and C)

Question 14

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

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) C) and D)
F) A) and B)

Question 15

How many carbons does a pentose sugar have?

Accepted Answer

A)   2
B)   3
C)   4
D)   5E) A) and B)
F) A) and C)

Question 16

From the sugars shown below, which one is a non-reducing sugar?

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) A) and B)
F) A) and C)

Question 17

Upon hydrolysis of cellulose, what sugar is formed?

Accepted Answer

A)   sucrose
B)   maltose
C)   lactose
D)   glucoseE) A) and B)
F) None of the above

Question 18

What is the best description of the product formed in the following reaction sequence?

Accepted Answer

A)   The product is an optically active aldonic acid.
B)   The product is an optically inactive aldonic acid.
C)   The product is an optically active aldaric acid.
D)   The product is an optically inactive aldaric acid.E) A) and B)
F) All of the above

Question 19

What is the composition of sucrose?

Accepted Answer

A)   two glucose units with a -1,4'-glycoside bond
B)   one glucose and one fructose unit with a -glycosidic bond to the 2'carbon of a fructofuranose ring
C)   one galactose and one glucose unit with a -1,4'-glycoside bond
D)   repeating unit of glucose units joined in a -1,4'-glycosidic linkageE) A) and B)
F) B) and C)

Question 20

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

Accepted Answer

A)   A
B)   B
C)   C
D)   DE) All of the above
F) A) and C)

Exam 28: Carbohydrates

Which of the following best describes the relationship between D-glucose and D-fructose?

Correct AnswerverifiedShow Answer

What is the process called for the interconversion of one anomer to the other?

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From the disaccharides listed below, which one will not undergo mutarotation?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The branching units in amylopectin, a polysaccharide, which enable this molecule to be water soluble are connected with __________________________ linkages.

Correct AnswerverifiedShow Answer

Which is the correct Haworth projection for the  anomer of allose?

Correct AnswerverifiedShow Answer

Which of the following is a reducing sugar?

Correct AnswerverifiedShow Answer

Which of the following compounds is an aldose?

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

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From the sugars shown below, which one is a non-reducing sugar?

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How many carbons does a pentose sugar have?

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

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What is the best description of the product formed in the following reaction sequence?

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What is the correct chair form for the  anomer of D-glucose?

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

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What is the composition of sucrose?

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

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

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Which of the following reagents would convert glucose into ethyl glucopyranoside?

Correct AnswerverifiedShow Answer

Upon hydrolysis of cellulose, what sugar is formed?

Correct AnswerverifiedShow Answer

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