Question 1

What is the index of hydrogen deficiency in C10H12N2O3?

Accepted Answer

A) 5 
B) 4 
C) 3 
D) 2 
E) 6 
A) 5 
B) 4 
C) 3 
D) 2 
E) 6

Question 2

Which compound is a saturated hydrocarbon?

Accepted Answer

A) 1-butyne 
B) acetylene 
C) 3-methylheptane 
D) 2-methylheptene 
E) ethene 
A) 1-butyne 
B) acetylene 
C) 3-methylheptane 
D) 2-methylheptene 
E) ethene

Question 3

Determine the absolute configuration of the molecule shown below:

Accepted Answer

A) S configuration 
B) R configuration 
C) E configuration 
D) Z configuration 
E) l configuration 
A) S configuration 
B) R configuration 
C) E configuration 
D) Z configuration 
E) l configuration

Question 4

Determine the absolute configuration of the molecule shown below:

Accepted Answer

A) S configuration 
B) R configuration 
C) E configuration 
D) Z configuration 
E) l configuration 
A) S configuration 
B) R configuration 
C) E configuration 
D) Z configuration 
E) l configuration

Question 5

Which of the bold and underlined carbon atoms would be the most deshielded in 13C NMR?

Accepted Answer

A) H3C-OH 
B) CH3CH2NH2 
C) HCOOH 
D) CH3CH2OCH2CH3 
E) CH3C(=O)H 
A) H3C-OH 
B) CH3CH2NH2 
C) HCOOH 
D) CH3CH2OCH2CH3 
E) CH3C(=O)H

Question 6

Which of the following is a secondary alcohol?

Accepted Answer

A) CH3CH2OH 
B) (CH3)2(CH3CH2)COH 
C) (CH3)3COH 
D) (CH3)2CHCH(CH3)OH 
E) CH3OCH3 
A) CH3CH2OH 
B) (CH3)2(CH3CH2)COH 
C) (CH3)3COH 
D) (CH3)2CHCH(CH3)OH 
E) CH3OCH3

Question 7

When does conjugation occur?

Accepted Answer

A) Conjugation occurs every time an organic molecule has a heteroatom in its structure regardless of hybridization. 
B) Conjugation occurs every time an organic molecule has a sequence of three or more sp2 hybridized atoms. 
C) Conjugation occurs every time an organic molecule has a sequence of three or more sp3 hybridized atoms. 
D) Conjugation occurs every time an organic molecule has a sequence of two or more sp2 hybridized atoms. 
E) Conjugation occurs every time an organic molecule has a ring-type structure. 
A) Conjugation occurs every time an organic molecule has a heteroatom in its structure regardless of hybridization. 
B) Conjugation occurs every time an organic molecule has a sequence of three or more sp2 hybridized atoms. 
C) Conjugation occurs every time an organic molecule has a sequence of three or more sp3 hybridized atoms. 
D) Conjugation occurs every time an organic molecule has a sequence of two or more sp2 hybridized atoms. 
E) Conjugation occurs every time an organic molecule has a ring-type structure.

Question 8

Which of the following acyclic compounds is an alkyne with one triple bond in its structure?

Accepted Answer

A) C10H22 
B) C11H22 
C) C12H22 
D) C9H18 
E) C5H10 
A) C10H22 
B) C11H22 
C) C12H22 
D) C9H18 
E) C5H10

Question 9

Which of the following lists the substituents in the order of priority, from highest (priority 1)to lowest (priority 4)?

Accepted Answer

A) -CH3, -CH=CH2, -CH2CH3, -Cl 
B) -CH3, -CH2CH3, -CH=CH2, -Cl 
C) -Cl, -CH2CH3, -CH3, -CH=CH2 
D) -Cl, -CH2CH3, -CH=CH2, -CH3 
E) -Cl, -CH=CH2, -CH2CH3, -CH3 
A) -CH3, -CH=CH2, -CH2CH3, -Cl 
B) -CH3, -CH2CH3, -CH=CH2, -Cl 
C) -Cl, -CH2CH3, -CH3, -CH=CH2 
D) -Cl, -CH2CH3, -CH=CH2, -CH3 
E) -Cl, -CH=CH2, -CH2CH3, -CH3

What is the index of hydrogen deficiency in C₁₀H₁₂N₂O₃?

Which compound is a saturated hydrocarbon?

Determine the absolute configuration of the molecule shown below:

Determine the absolute configuration of the molecule shown below:

Which of the bold and underlined carbon atoms would be the most deshielded in ¹³C NMR?

Which of the following is a secondary alcohol?

When does conjugation occur?

Which of the following acyclic compounds is an alkyne with one triple bond in its structure?

Which of the following lists the substituents in the order of priority, from highest (priority 1)to lowest (priority 4)?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

Exam 20: Organic Chemistry I: Structures

What is the index of hydrogen deficiency in C10H12N2O3?

Which compound is a saturated hydrocarbon?

Determine the absolute configuration of the molecule shown below:

Determine the absolute configuration of the molecule shown below:

Which of the bold and underlined carbon atoms would be the most deshielded in 13C NMR?

Which of the following is a secondary alcohol?

When does conjugation occur?

Which of the following acyclic compounds is an alkyne with one triple bond in its structure?

Which of the following lists the substituents in the order of priority, from highest (priority 1)to lowest (priority 4)?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

What is the index of hydrogen deficiency in C₁₀H₁₂N₂O₃?

Which of the bold and underlined carbon atoms would be the most deshielded in ¹³C NMR?