CHEM 251ch13-ques-2022
Chapter Thirteen
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Easy
1. What is the IUPAC name for the following compound?
CH3 CH3
CH3CHCHCHCHCH3
OH CH3
A) 4-isopropyl-3,4-dimethyl-2-butanol
B) 2,3,4-trimethyl-4-pentanol
C) 1,1,2,3-tetramethyl-4-pentanol
D) 3,4,5-trimethyl-2-hexanol
E) 3,4,5,5-tetramethyl-2-pentanol
Ans: D
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Easy
2. What is the IUPAC name for isobutyl alcohol?
A) 2-methyl-1-propanol
B) 2-methyl-1-butanol
C) 1-methyl-1-propanol
D) 1,1-dimethyl-1-ethanol
E) 3-methyl-1-propanol
Ans: A
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Easy
, 3. What is the IUPAC name for the following compound?
CH2CH3
CH3CH2CCH2CH3
OH
A) 1,1,1-triethylmethanol
B) 1,1-diethyl-1-propanol
C) 2-ethyl-3-pentanol
D) 3-ethyl-3-pentanol
E) t-heptanol
Ans: D
Formatted: Font: Italic, No underline
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Medium
4. What is the IUPAC name for t-butyl alcohol? Formatted: Font: Italic
A) 1-butanol
B) 2-methyl-1-propanol
C) 2-methyl-2-propanol
D) 2-butanol
E) 1,1-dimethyl-1-ethanol
Ans: C
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Medium
5. What is the IUPAC name for the following compound?
OH
A) 1-isopropyl-4-cyclopentanol
B) 3-isopropyl-1-cyclopentanol
C) 1-isopropyl-3-cyclopentanol
D) 1-isopropyl-4-hydroxycyclopentane
E) None of these
Ans: B
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Medium
, 6. What is the correct structure for 1-chloro-3-ethyl-2-pentanol?
CH2CH3 CH2CH3 CH2CH3 CH2CH3
CH3CH2CCH2CH2Cl CH3CHCHCH2CH2Cl CH3CH2CHCHCH2Cl
CH3CH2CHCH2CHCl
IV OH
OH OH OH
II III
I
A) I
B) II
C) III
D) IV
E) None of these
Ans: D
T
S opic: Nomenclature of alcohols
Dection:
ifficult y Level: Medium
7. What is the IUPAC name for the following compound?
Br
HO
A) 2-methyl-5-bromocyclohexanol
B) 3-bromo-2-methylcyclohexanol
C) 1-bromo-4-methylcyclohexanol
D) 4-bromo-6-methylcyclohexanol
E) 4-bromo-2-methylcyclohexanol
Ans: E
Topic: Nomenclature of alcohols
Section:
D ifficult y Level: Hard
, 8. What is the IUPAC name for the following compound?
CH2CH2OH
CH3CH2C=CCH2CH3
CH3
A) 3-methyl-4-ethyl-3-hexen-6-ol
B) 4-ethyl-3-methyl-3,6-hexenol
C) 3-ethyl-4-methyl-3-hexen-1-ol
D) 3-methyl-4-(2-hydroxyethyl)-3-hexene
E) 3-(2-hydroxyethyl)- 3-methyl-3-hexene
Ans: C
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Hard
9. What is the IUPAC name for the following compound?
OH
A) 4-penten-2-methyl-2-ol
B) 4-methyl-1-penten-2-ol
C) 2-methyl-4-penten-2-ol
D) 4-methyl-1-penten-4-ol
E) 4-hydroxy-4-methyl-1-pentene
Ans: C
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Hard
10. What is the IUPAC name for the following compound?
CH3
C
H
C
HO
A) (R)-3-hexyn-2-ol Formatted: Font: Italic
B) (S)-3-hexyn-2-ol Formatted: Font: Italic
C) (R)-2-hexyn-4-ol Formatted: Font: Italic
D) (S)-2-hexyn-4-ol Formatted: Font: Italic
E) (S)-2-hydroxy-3-hexyne Formatted: Font: Italic
Ans: B
Chapter Thirteen
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Easy
1. What is the IUPAC name for the following compound?
CH3 CH3
CH3CHCHCHCHCH3
OH CH3
A) 4-isopropyl-3,4-dimethyl-2-butanol
B) 2,3,4-trimethyl-4-pentanol
C) 1,1,2,3-tetramethyl-4-pentanol
D) 3,4,5-trimethyl-2-hexanol
E) 3,4,5,5-tetramethyl-2-pentanol
Ans: D
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Easy
2. What is the IUPAC name for isobutyl alcohol?
A) 2-methyl-1-propanol
B) 2-methyl-1-butanol
C) 1-methyl-1-propanol
D) 1,1-dimethyl-1-ethanol
E) 3-methyl-1-propanol
Ans: A
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Easy
, 3. What is the IUPAC name for the following compound?
CH2CH3
CH3CH2CCH2CH3
OH
A) 1,1,1-triethylmethanol
B) 1,1-diethyl-1-propanol
C) 2-ethyl-3-pentanol
D) 3-ethyl-3-pentanol
E) t-heptanol
Ans: D
Formatted: Font: Italic, No underline
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Medium
4. What is the IUPAC name for t-butyl alcohol? Formatted: Font: Italic
A) 1-butanol
B) 2-methyl-1-propanol
C) 2-methyl-2-propanol
D) 2-butanol
E) 1,1-dimethyl-1-ethanol
Ans: C
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Medium
5. What is the IUPAC name for the following compound?
OH
A) 1-isopropyl-4-cyclopentanol
B) 3-isopropyl-1-cyclopentanol
C) 1-isopropyl-3-cyclopentanol
D) 1-isopropyl-4-hydroxycyclopentane
E) None of these
Ans: B
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Medium
, 6. What is the correct structure for 1-chloro-3-ethyl-2-pentanol?
CH2CH3 CH2CH3 CH2CH3 CH2CH3
CH3CH2CCH2CH2Cl CH3CHCHCH2CH2Cl CH3CH2CHCHCH2Cl
CH3CH2CHCH2CHCl
IV OH
OH OH OH
II III
I
A) I
B) II
C) III
D) IV
E) None of these
Ans: D
T
S opic: Nomenclature of alcohols
Dection:
ifficult y Level: Medium
7. What is the IUPAC name for the following compound?
Br
HO
A) 2-methyl-5-bromocyclohexanol
B) 3-bromo-2-methylcyclohexanol
C) 1-bromo-4-methylcyclohexanol
D) 4-bromo-6-methylcyclohexanol
E) 4-bromo-2-methylcyclohexanol
Ans: E
Topic: Nomenclature of alcohols
Section:
D ifficult y Level: Hard
, 8. What is the IUPAC name for the following compound?
CH2CH2OH
CH3CH2C=CCH2CH3
CH3
A) 3-methyl-4-ethyl-3-hexen-6-ol
B) 4-ethyl-3-methyl-3,6-hexenol
C) 3-ethyl-4-methyl-3-hexen-1-ol
D) 3-methyl-4-(2-hydroxyethyl)-3-hexene
E) 3-(2-hydroxyethyl)- 3-methyl-3-hexene
Ans: C
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Hard
9. What is the IUPAC name for the following compound?
OH
A) 4-penten-2-methyl-2-ol
B) 4-methyl-1-penten-2-ol
C) 2-methyl-4-penten-2-ol
D) 4-methyl-1-penten-4-ol
E) 4-hydroxy-4-methyl-1-pentene
Ans: C
Topic: Nomenclature of
alcohols Section: 13.1
Difficulty Level: Hard
10. What is the IUPAC name for the following compound?
CH3
C
H
C
HO
A) (R)-3-hexyn-2-ol Formatted: Font: Italic
B) (S)-3-hexyn-2-ol Formatted: Font: Italic
C) (R)-2-hexyn-4-ol Formatted: Font: Italic
D) (S)-2-hexyn-4-ol Formatted: Font: Italic
E) (S)-2-hydroxy-3-hexyne Formatted: Font: Italic
Ans: B
