Take Test: Assignment 4 – Spring 2019 CH...
Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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Take Test: Assignment 4 – Spring 2019 CHEM133-51:
Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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Assignment
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n Setting:
This assignment mainly covers the nomenclatures of the organic compounds and
selected chemical reactions. All of these questions came from the problem set in
Chapters 14 and 15. Practice makes perfect! You can find more of this type of
problems in those two chapters.
This test allows multiple attempts.
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QU ES TI ON 1
What is the IUPAC name of this compound?
a.
3-bromobutanal
b.
2-bromobutanal
c.
2-bromobutanone
d.
2-bromobutanone
QU ES TI ON 2
Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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3/30/2019, 10:49 AM
What is the correct structural formula for 4-oxopentanal?
a.
1
b.
2
c.
3
d.
4
QU ES TI ON 3
Give the name of alcohol, aldehyde, or ketone from the reduction
of 4-methyl- 2-hexanone.
a.
4-methyl-2-hexanol
b.
4-methyl-2-hexanal
c.
4-methyl-2-hexanone
d.
4-methylhexanol
QU ES TI ON 4
Choose the correct IUPAC name for the following compound:
a. 2-chlorocyclopentanone
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QU ES TI ON 5
Give the names of the carbonyl compound and alcohol used in the synthesis
of following hemiacetal.
a. isopropanone and cyclohexanol
b.
propanal and cyclohexanol
c. cyclohexanone and isopropylalcohol
d.
cyclohexanal and isopropylalcohol
QU ES TI ON 6
Arrange pentane, 2-butanol, and 2-butanone, which have similar molar
masses, in order of increasing boiling points.
a.
2-butanol<2-butanone<pentane
b.
2-butanone<pentane<2-butanol
c.
pentane<2-butanol<2-butanone
d.
pentane<2-butanone<2-butanol
QU ES TI ON 7
Give the names of the carbonyl compound and alcohol used in the synthesis
of following acetal.
a.
ethanal and 1-propanol
b.
ethanone and 1-propanol
c.
propanone and ethanol
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Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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Give the IUPAC name for the following compound.
a. 4,5-dimethyl-3-hexanone
b. 2,3-dimethyl-4-hexanone
c.
3,5-methyl-5-hexanone
d.
4,5-dimethyl-3-hexanone
QU ES TI ON 9
Refer to the disaccharides below to answer the question(s) that follow.
Hydrolysis of the disaccharide above gives the monosaccharides
d. ribose and glucose.
c. fructose and ribose.
a. ribose and galactose.
b. fructose and galactose.
e. fructose and lactose.
QU ES TI ON 10
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Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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3/30/2019, 10:49 AM
Give the name of the alcohol, aldyhyde, or ketone produced from the
oxidation of 3-methyl-2-pentanol.
a.
3-methyl-2-pentanol
b.
3-methylpentanal
c.
3-methyl-2-pentanal
d.
3-methyl-2-pentanone
QU ES TI ON 11
Raffinose is a trisaccharide found in Australian manna and in
cottonseed
meal. It is composed of three different monosacccharides. Identify the
monosaccharides in raffinose.
a. A-Glucose; B-Galactose; C-Fructose
b. A-Galactose; B-Glucose; C-Fructose
c. A-Glucose; B-Galactose; C-Ribose
d. A-Glucose; B-Mannose, C-Ribose
QU ES TI ON 12
Give the name of the alcohol, aldehyde, or ketone from the
oxidation of 3-methylcyclohexanone
a.
3-methylcyclohexanal
b.
3-methylcyclohexanol
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Indicate whether each of the following is a hemiacetal, acetal, ether or alcohol
1
A.
ether
2
B.
alcohol
C.
hemiacetal
3
D.
acetal
4
E.
ether
5
QU ES TI ON 14
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Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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What are the glycosidics bonds shown in raffinose?
a.
Between A and B: alpha-1,6-glycosidic bond; between B and C:
alpha-1,4- glycosidic bond
b.
Between A and B: alpha-1,4-glycosidic bond; between B and C:
alpha-1,5- glycosidic bond
c. Between A and B: alpha-1,2-glycosidic bond; between B and C: alpha-
1,6- glycosidic bond
d. Between A and B: beta-1,6-glycosidic bond; between B and C: beta-1,4-
glycosidic bond
QU ES TI ON 15
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Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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Identify each of the following structures as chiral or achiral.
1
A.
chiral
2
B.
achiral
C.
chiral
3
D.
achiral
4
QU ES TI ON 16
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A. What is the acetal formed by adding one ethanol molecule to propanal? B.
What is the acetal formed by adding a second molecule of ethanol to the
compound in A?
a.
1
b.
2
c.
3
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Take Test: Assignment 4 – Spring 2019 CHEM133-51:
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3/30/2019, 10:49 AM
Give the correct IUPAC name for the following compound:
a. 1,5-dichlorobenzyl alchohol
b.
1,3-dichlorobenzaldehyde
c.
1,5-dichlorobenzaldehyde
c. 1,3-dichlorobenzyl alcohol
QU ES TI ON 18
Give the correct IUPAC name for this compound:
a. 4-hydroxy-2-pentanone
a. 2-hydroxy-4-pentanone
c. 4-hydroxy-2-pentanal
d. 2-hydroxy-4-pentanal
QU ES TI ON 19
State whether each of these structures is the α- or β-form.
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