Question 1

The IUPAC name of tert-butyl group is:

Accepted Answer

A) 1,1-dimethylethyl 
B) 1,1-dimethylethane 
C) 1,2-dimethylethyl 
D) 1-methylpropyl 
E) 2-methylpropyl 
A) 1,1-dimethylethyl 
B) 1,1-dimethylethane 
C) 1,2-dimethylethyl 
D) 1-methylpropyl 
E) 2-methylpropyl

Question 2

Which of the following methods are used for the laboratory alkane synthesis?
I.catalytic addition of hydrogen to multiple carbon - carbon bonds
II.catalytic hydrogenation of aldehydes
III.from halogenated hydrocarbons and sodium
IV.from alkali metal salts of organic acids and alkali metal hydroxides
V.dehydrohalogenation of organic halogen compounds

Accepted Answer

A) I,II,and V 
B) II,III,and V 
C) I,III,and IV 
D) II,III,and IV 
E) III,IVand V 
A) I,II,and V 
B) II,III,and V 
C) I,III,and IV 
D) II,III,and IV 
E) III,IVand V

Question 3

Which of the following chiral compounds is(are)S enantiomer(s)?

Accepted Answer

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

Question 4

Which methods can be used to prepare alcohols?
I.addition of H2O to alkenes in the presence of H2SO4
II.reacting alkanes with a concentrated solution of CH3OH
III.hydrolysis of alkyl halides
IV.methanol can be prepared from CO(g)and H2(g)in the presence of a heterogeneous catalyst
V.removing one oxygen atom from a carboxylic acid

Accepted Answer

A) I,IIand IV 
B) I,III,and IV 
C) II,III,and V 
D) I,II,and V 
E) II,IVand V 
A) I,IIand IV 
B) I,III,and IV 
C) II,III,and V 
D) I,II,and V 
E) II,IVand V

Question 5

There are three rules for assigning priorities:
Rule 1: A substituent atom of higher atomic number takes precedence over one of lower atomic number.
Rule 2: If two substituent atoms attached to the stereocenter have the same priority,the atom on the right of a hydrogen atom bonded to chiral carbon is a substituent of higher priority.
Rule 3: Double and triple bonds are treated as if they were single,and the atoms in them are duplicated or triplicated at each end by the particular atoms at the other end of the multiple bond.
Which rule(s)is/are stated incorrectly?

Accepted Answer

A) rule 2 
B) rules 1 and 3 
C) rule 3 
D) rules 2 and 3 
E) rules 1 and 2 
A) rule 2 
B) rules 1 and 3 
C) rule 3 
D) rules 2 and 3 
E) rules 1 and 2

Question 6

Provide IUPAC names for the following compounds:

Accepted Answer

A) A is (3S)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3R)-3-fluoro-3-methylhexane 
B) A is (3R)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3R)-3-fluoro-3-methylhexane 
C) A is (3S)-3-bromo-2,3-dimethylpentane,B is (2R)-1,2-dibromopentane and C is (3R)-3-fluoro-3-methylhexane 
D) A is (3S)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3S)-3-fluoro-3-methylhexane 
E) A is (3R)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3S)-3-fluoro-3-methylhexane 
A) A is (3S)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3R)-3-fluoro-3-methylhexane 
B) A is (3R)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3R)-3-fluoro-3-methylhexane 
C) A is (3S)-3-bromo-2,3-dimethylpentane,B is (2R)-1,2-dibromopentane and C is (3R)-3-fluoro-3-methylhexane 
D) A is (3S)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3S)-3-fluoro-3-methylhexane 
E) A is (3R)-3-bromo-2,3-dimethylpentane,B is (2S)-1,2-dibromopentane and C is (3S)-3-fluoro-3-methylhexane

Question 7

Name the functional groups in the molecule below:

Accepted Answer

A) ester,ether,amine,keto 
B) carboxyl,ether,amine,keto 
C) ester,ether,amine,aldehyde 
D) ester,ether,amide,aldehyde 
E) ester,carboxyl,amine,keto 
A) ester,ether,amine,keto 
B) carboxyl,ether,amine,keto 
C) ester,ether,amine,aldehyde 
D) ester,ether,amide,aldehyde 
E) ester,carboxyl,amine,keto

Question 8

Give the name for (CH3)3CCHO.

Accepted Answer

A) 2,2-dimethylpropanone 
B) 2-methylbutanol 
C) 1,1,1-trimethylethanol 
D) 2,2-dimethylpropanal 
E) ethylethanol 
A) 2,2-dimethylpropanone 
B) 2-methylbutanol 
C) 1,1,1-trimethylethanol 
D) 2,2-dimethylpropanal 
E) ethylethanol

Question 9

Which of the following structures represents a structure of R isomer of 1-amino-2-propanol?

Accepted Answer

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

Question 10

Replacing the acidic hydrogen of a carboxylic acid with an organic group produces an amide.

Accepted Answer

A) True 
 B)False

Question 11

The common ether used in anesthesia has the IUPAC name ________.

Accepted Answer

A) diethyl ether 
B) methyl ethyl ether 
C) methyl ether 
D) 2-butyl ether 
E) none of these 
A) diethyl ether 
B) methyl ethyl ether 
C) methyl ether 
D) 2-butyl ether 
E) none of these

Question 12

What is the complete systematic name for the following molecule?

Accepted Answer

A) 3-pentene 
B) 3-hexene 
C) cis-3-hexene 
D) trans-3-hexene 
E) cis-3-hexyne 
A) 3-pentene 
B) 3-hexene 
C) cis-3-hexene 
D) trans-3-hexene 
E) cis-3-hexyne

Question 13

The diol,ethylene glycol,is used extensively as an antifreeze additive in automobile radiators.What properties of ethylene glycol make it a good antifreeze?

Accepted Answer

A) Ethylene glycol coats the radiator to prevent crystallization of ice at low temperatures. 
B) Ethylene glycol has a higher boiling point than water and is soluble in water. 
C) Ethylene glycol has a lower boiling point than water and is soluble in water. 
D) Ethylene glycol forms a film on the surface of the water to prevent ice formation in the radiator. 
E) Ethylene glycol will remain in the radiator after the water evaporates.This prevents freezing in cold climates. 
A) Ethylene glycol coats the radiator to prevent crystallization of ice at low temperatures. 
B) Ethylene glycol has a higher boiling point than water and is soluble in water. 
C) Ethylene glycol has a lower boiling point than water and is soluble in water. 
D) Ethylene glycol forms a film on the surface of the water to prevent ice formation in the radiator. 
E) Ethylene glycol will remain in the radiator after the water evaporates.This prevents freezing in cold climates.

Question 14

How many skeletal isomers for C6H14 can be drawn?

Accepted Answer

A) 6 
B) 3 
C) 8 
D) 5 
E) 2 
A) 6 
B) 3 
C) 8 
D) 5 
E) 2

Question 15

Provide names for compounds A,B and C:

Accepted Answer

A) A is 3-chloro-4-methylpentanal,B is meta-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanecarboxylic acid 
B) A is 3-chloro-4-methylpentanol,B is meta-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanecarboxylic acid 
C) A is 3-chloro-4-methylpentanal,B is ortho-chlorophenol and C is 3-(3-methylcyclohexyl)cyclopentanecarboxylic acid 
D) A is 3-chloro-4-methylpentanone,B is meta-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanal 
E) A is 4-chloro-3-methylpentanal,B is para-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanecarboxylic acid 
A) A is 3-chloro-4-methylpentanal,B is meta-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanecarboxylic acid 
B) A is 3-chloro-4-methylpentanol,B is meta-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanecarboxylic acid 
C) A is 3-chloro-4-methylpentanal,B is ortho-chlorophenol and C is 3-(3-methylcyclohexyl)cyclopentanecarboxylic acid 
D) A is 3-chloro-4-methylpentanone,B is meta-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanal 
E) A is 4-chloro-3-methylpentanal,B is para-chlorophenol and C is 3-(2-methylcyclohexyl)cyclopentanecarboxylic acid

Question 16

Which of the following compounds is(are)E configuration(s)?

Accepted Answer

A) I 
B) II 
C) III 
D) I + II 
E) II + III 
A) I 
B) II 
C) III 
D) I + II 
E) II + III

Question 17

Which of the following chiral compounds is(are)R enantiomer(s)?

Accepted Answer

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

Question 18

Which of the following represent two different chair forms of methylcyclohexane?

Accepted Answer

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

Question 19

Which of the following structures represent the structure of trans-1-bromo-2-methylcyclohexane?

Accepted Answer

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

Question 20

What is the IUPAC name for the following molecule?

Accepted Answer

A) 2-bromo-4-isopropyl-3-methylbutane 
B) 2-bromo-3,5-dimethylhexane 
C) 3,5-dimethyl-2-bromohexane 
D) 2-bromo-3-methyl-4-propylbutane 
E) 2-bromo-5,5,3-trimethylpentane 
A) 2-bromo-4-isopropyl-3-methylbutane 
B) 2-bromo-3,5-dimethylhexane 
C) 3,5-dimethyl-2-bromohexane 
D) 2-bromo-3-methyl-4-propylbutane 
E) 2-bromo-5,5,3-trimethylpentane

Exam 26: Structures of Organic Compounds

The IUPAC name of tert-butyl group is:

Which of the following chiral compounds is(are)S enantiomer(s)?

Provide IUPAC names for the following compounds:

Name the functional groups in the molecule below:

Give the name for (CH3)3CCHO.

Which of the following structures represents a structure of R isomer of 1-amino-2-propanol?

Replacing the acidic hydrogen of a carboxylic acid with an organic group produces an amide.

The common ether used in anesthesia has the IUPAC name ________.

What is the complete systematic name for the following molecule?

The diol,ethylene glycol,is used extensively as an antifreeze additive in automobile radiators.What properties of ethylene glycol make it a good antifreeze?

How many skeletal isomers for C6H14 can be drawn?

Provide names for compounds A,B and C:

Which of the following compounds is(are)E configuration(s)?

Which of the following chiral compounds is(are)R enantiomer(s)?

Which of the following represent two different chair forms of methylcyclohexane?

Which of the following structures represent the structure of trans-1-bromo-2-methylcyclohexane?

What is the IUPAC name for the following molecule?

Matter: Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Reactions of Organic Compounds

Chemistry of the Living State

Filters

Give the name for (CH₃)₃CCHO.

How many skeletal isomers for C₆H₁₄ can be drawn?