Question 1

The following electron configuration represents:

Accepted Answer

A) the ground state of boron 
B) the sp3 hybridized state of carbon 
C) the sp3 hybridized state of nitrogen 
D) the ground state of carbon 
E) an excited state of carbon 
A) the ground state of boron 
B) the sp3 hybridized state of carbon 
C) the sp3 hybridized state of nitrogen 
D) the ground state of carbon 
E) an excited state of carbon

Question 2

Which of the following species contributes more to the overall hybrid for the species in the box?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) The one in the box. 
A) I 
B) II 
C) III 
D) IV 
E) The one in the box.

Question 3

Which principle(s)or rule(s)must be used to determine the correct electronic configuration for carbon in its ground state?

Accepted Answer

A) Aufbau principle 
B) Hund's Rule 
C) Pauli exclusion principle 
D) Aufbau principle and Hund's rule only 
E) Aufbau principle,Hund's rule,and Pauli exclusion principle 
A) Aufbau principle 
B) Hund's Rule 
C) Pauli exclusion principle 
D) Aufbau principle and Hund's rule only 
E) Aufbau principle,Hund's rule,and Pauli exclusion principle

Question 4

All organic compounds have their origins from living organisms.

Accepted Answer

A) True 
 B)False

Question 5

What is the approximate hybridization state of the nitrogen atom in trimethylamine,(CH3)3N?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) p3 
E) d2sp3 
A) sp 
B) sp2 
C) sp3 
D) p3 
E) d2sp3

Question 6

What geometry does the methyl cation,CH3+,have?

Accepted Answer

A) octahedral 
B) tetrahedral 
C) trigonal planar 
D) linear 
E) trigonal pyramidal 
A) octahedral 
B) tetrahedral 
C) trigonal planar 
D) linear 
E) trigonal pyramidal

Question 7

What is the formal charge on oxygen in the following structure?

Accepted Answer

A) +2 
B) +1 
C) 0 
D) -1 
E) -2 
A) +2 
B) +1 
C) 0 
D) -1 
E) -2

Question 8

What is the geometry of the C indicated with the arrow?

Accepted Answer

A) tetrahedral 
B) trigonal pyramidal 
C) linear 
D) bent 
E) trigonal planar 
A) tetrahedral 
B) trigonal pyramidal 
C) linear 
D) bent 
E) trigonal planar

Question 9

Which of these structures would be a perfectly regular tetrahedron?

Accepted Answer

A) CH3Br 
B) CH2Br2 
C) CHBr3 
D) CBr4 
E) More than one of these choices. 
A) CH3Br 
B) CH2Br2 
C) CHBr3 
D) CBr4 
E) More than one of these choices.

Question 10

Which of the following structures is/are not a resonance form of the following species?

Accepted Answer

A)    
B)    
C)    
D)    
E) None of these choices are correct resonance forms. 
A)    
B)    
C)    
D)    
E) None of these choices are correct resonance forms.

Question 11

The bond angle for the C-S-C bonds in the following molecule would be expected to be approximately:

Accepted Answer

A) 90S1U1P1$\circ$S1S1P0 
B) 109S1U1P1$\circ$S1S1P0 
C) 120S1U1P1$\circ$S1S1P0 
D) 145S1U1P1$\circ$S1S1P0 
E) 180S1U1P1$\circ$S1S1P0 
A) 90S1U1P1$\circ$S1S1P0 
B) 109S1U1P1$\circ$S1S1P0 
C) 120S1U1P1$\circ$S1S1P0 
D) 145S1U1P1$\circ$S1S1P0 
E) 180S1U1P1$\circ$S1S1P0

Question 12

What is the approximate hybridization state of the oxygen molecule in ethanol,C2H5OH?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) p3 
E) d2sp3 
A) sp 
B) sp2 
C) sp3 
D) p3 
E) d2sp3

Question 13

Credit for the first synthesis of an organic compound from an inorganic precursor is usually given to ___.

Accepted Answer

A) Berzelius 
B) Arrhenius 
C) Kekule 
D) Wöhler 
E) Lewis 
A) Berzelius 
B) Arrhenius 
C) Kekule 
D) Wöhler 
E) Lewis

Question 14

What bond angle is associated with a tetrahedral molecule?

Accepted Answer

A) 120S1U1P1$\circ$S1S1P0 
B) 109.5S1U1P1$\circ$S1S1P0 
C) 180S1U1P1$\circ$S1S1P0 
D) 90S1U1P1$\circ$S1S1P0 
E) 45S1U1P1$\circ$S1S1P0 
A) 120S1U1P1$\circ$S1S1P0 
B) 109.5S1U1P1$\circ$S1S1P0 
C) 180S1U1P1$\circ$S1S1P0 
D) 90S1U1P1$\circ$S1S1P0 
E) 45S1U1P1$\circ$S1S1P0

Question 15

What is the hybridization of the N atom in the following molecule?

Accepted Answer

A) sp3 
B) sp2 
C) sp 
D) s 
E) sp4 
A) sp3 
B) sp2 
C) sp 
D) s 
E) sp4

Question 16

The major resonance contributor to the resonance hybrid will have the greatest separation of formal charges.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following species contributes more to the overall hybrid for the species in the box?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) The one in the box. 
A) I 
B) II 
C) III 
D) IV 
E) The one in the box.

Question 18

Which of the following structures represent compounds that are constitutional isomers of each other?

Accepted Answer

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

Question 19

Which of the following is the Lewis structure for CH3CO2H?

Accepted Answer

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

Question 20

Which of the following pairs are NOT resonance structures?

Accepted Answer

A) 
  
B)    
C)    
D) Each of these pairs represents resonance structures. 
E) None of these pairs represents resonance structures. 
A) 
  
B)    
C)    
D) Each of these pairs represents resonance structures. 
E) None of these pairs represents resonance structures.

Exam 1: The Basics

The following electron configuration represents:

Which of the following species contributes more to the overall hybrid for the species in the box?

Which principle(s)or rule(s)must be used to determine the correct electronic configuration for carbon in its ground state?

All organic compounds have their origins from living organisms.

What is the approximate hybridization state of the nitrogen atom in trimethylamine,(CH3)3N?

What geometry does the methyl cation,CH3+,have?

What is the formal charge on oxygen in the following structure?

What is the geometry of the C indicated with the arrow?

Which of these structures would be a perfectly regular tetrahedron?

Which of the following structures is/are not a resonance form of the following species?

The bond angle for the C-S-C bonds in the following molecule would be expected to be approximately:

What is the approximate hybridization state of the oxygen molecule in ethanol,C2H5OH?

Credit for the first synthesis of an organic compound from an inorganic precursor is usually given to ___.

What bond angle is associated with a tetrahedral molecule?

What is the hybridization of the N atom in the following molecule?

The major resonance contributor to the resonance hybrid will have the greatest separation of formal charges.

Which of the following species contributes more to the overall hybrid for the species in the box?

Which of the following structures represent compounds that are constitutional isomers of each other?

Which of the following is the Lewis structure for CH3CO2H?

Which of the following pairs are NOT resonance structures?

Families of Carbon

Acids and Bases

Nomenclature and Conformations of Alkanes and Cycloalkanes

Stereochemistry

Nucleophilic Reactions

Alkenes and Alkynes I

Alkenes and Alkynes II

Nuclear Magnetic Resonance and Mass Spectrometry

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Reactions at the Α Carbon of Carbonyl Compounds

Condensation and Conjugate Addition Reactions of Carbonyl Compounds

Amines

Transition Metal Complexes

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

What is the approximate hybridization state of the nitrogen atom in trimethylamine,(CH₃)₃N?

What geometry does the methyl cation,CH₃⁺,have?

What is the approximate hybridization state of the oxygen molecule in ethanol,C₂H₅OH?

Which of the following is the Lewis structure for CH₃CO₂H?