Question 1

Identify the atomic orbitals in the C-N sigma bond in the following oxime:

Accepted Answer

A) (2sp2,2sp2) 
B) (2sp3,2sp3) 
C) (2sp,2sp) 
D) (2sp2,2sp3) 
E) (2sp,1s) 
A) (2sp2,2sp2) 
B) (2sp3,2sp3) 
C) (2sp,2sp) 
D) (2sp2,2sp3) 
E) (2sp,1s)

Question 2

Identify the atomic orbital the lone pair electrons on the B atom are contained in:

Accepted Answer

A) 2sp2 
B) 2sp3 
C) 2p 
D) 2s 
E) There are no lone pair electrons on B. 
A) 2sp2 
B) 2sp3 
C) 2p 
D) 2s 
E) There are no lone pair electrons on B.

Question 3

The bond angle for the C-N-O 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 4

In which of the following would you expect the central atom to be sp3 hybridized (or approximately sp3 hybridized)?

Accepted Answer

A) BH4- 
B) NH4+ 
C) CCl4 
D) CH3: - 
E) All of these choices. 
A) BH4- 
B) NH4+ 
C) CCl4 
D) CH3: - 
E) All of these choices.

Question 5

The following electron configuration represents:

Accepted Answer

A) the ground state of nitrogen 
B) the ground state of oxygen 
C) the sp3 hybridized state of carbon 
D) the excited state of oxygen 
E) None of these choices correctly identifies the given electron configuration. 
A) the ground state of nitrogen 
B) the ground state of oxygen 
C) the sp3 hybridized state of carbon 
D) the excited state of oxygen 
E) None of these choices correctly identifies the given electron configuration.

Question 6

Which of the following species is a resonance form of the species in the box?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) None of these choices are correct resonance forms. 
A) I 
B) II 
C) III 
D) IV 
E) None of these choices are correct resonance forms.

Question 7

Which molecule has a non-linear shape (i.e.,for which molecule are the nuclei not in a straight line)?

Accepted Answer

A) O=C=O 
B) H-O-H 
C) H-Cl 
D) H-C$\equiv$N 
E) H-C$\equiv$C-H 
A) O=C=O 
B) H-O-H 
C) H-Cl 
D) H-C$\equiv$N 
E) H-C$\equiv$C-H

Question 8

Which type of bonding is present in the compound CH3Li?

Accepted Answer

A) Ionic bonding 
B) Covalent bonding 
C) Hydrogen bonding 
D) Ionic and covalent bonding 
E) Ionic,covalent,and hydrogen bonding 
A) Ionic bonding 
B) Covalent bonding 
C) Hydrogen bonding 
D) Ionic and covalent bonding 
E) Ionic,covalent,and hydrogen bonding

Question 9

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 10

Identify the atomic orbital the lone pair electrons on the N atom are contained in:

Accepted Answer

A) 2sp2 
B) 2sp3 
C) 2sp 
D) 2s 
E) 2p 
A) 2sp2 
B) 2sp3 
C) 2sp 
D) 2s 
E) 2p

Question 11

Which is NOT a correct Lewis structure?

Accepted Answer

A)    
B)    
C)    
D)    
E) None of these choices. 
A)    
B)    
C)    
D)    
E) None of these choices.

Question 12

Carbon and other elements in the second period cannot have expanded octets.

Accepted Answer

A) True 
 B)False

Question 13

The bond angle for the H-C-O 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 14

Cis-trans isomerism is possible only in the case of:

Accepted Answer

A) CH2=CBr2 
B) CH2=CHBr 
C) BrCH=CHBr 
D) Br2C=CHBr 
E) Br2C=CBr2 
A) CH2=CBr2 
B) CH2=CHBr 
C) BrCH=CHBr 
D) Br2C=CHBr 
E) Br2C=CBr2

Question 15

Which of the following species is/are a resonance form(s)of the species in the box?

Accepted Answer

A) I and II 
B) II and III 
C) III 
D) II 
E) More than two of these choices are correct resonance forms. 
A) I and II 
B) II and III 
C) III 
D) II 
E) More than two of these choices are correct resonance forms.

Question 16

In which of the following does the central atom have 2 pairs of non-bonding electrons?

Accepted Answer

A) O3 
B) CO2 
C) CO32- 
D) NH4+ 
E) H2S 
A) O3 
B) CO2 
C) CO32- 
D) NH4+ 
E) H2S

Question 17

Which of the following represent pairs of constitutional isomers?

Accepted Answer

A)    
B)    
C)    
D) None of these pairs. 
E) All of these pairs. 
A)    
B)    
C)    
D) None of these pairs. 
E) All of these pairs.

Question 18

What is the geometry of the N in the following molecule?

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 19

Draw all the isomers of C4H10O,using bond-line formulas.

Accepted Answer

Question 20

In which of these cases does the central atom have a zero formal charge?

Accepted Answer

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

Exam 1: The Basics

Identify the atomic orbitals in the C-N sigma bond in the following oxime:

Identify the atomic orbital the lone pair electrons on the B atom are contained in:

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

In which of the following would you expect the central atom to be sp3 hybridized (or approximately sp3 hybridized)?

The following electron configuration represents:

Which of the following species is a resonance form of the species in the box?

Which molecule has a non-linear shape (i.e.,for which molecule are the nuclei not in a straight line)?

Which type of bonding is present in the compound CH3Li?

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

Identify the atomic orbital the lone pair electrons on the N atom are contained in:

Which is NOT a correct Lewis structure?

Carbon and other elements in the second period cannot have expanded octets.

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

Cis-trans isomerism is possible only in the case of:

Which of the following species is/are a resonance form(s)of the species in the box?

In which of the following does the central atom have 2 pairs of non-bonding electrons?

Which of the following represent pairs of constitutional isomers?

What is the geometry of the N in the following molecule?

Draw all the isomers of C4H10O,using bond-line formulas.

In which of these cases does the central atom have a zero formal charge?

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

In which of the following would you expect the central atom to be sp³ hybridized (or approximately sp³ hybridized)?

Which type of bonding is present in the compound CH₃Li?

Draw all the isomers of C₄H₁₀O,using bond-line formulas.