Question 1

What is the hybridization state and approximate bond angle around nitrogen in the following compound?

Accepted Answer

A)  sp2, 109.5° 
B)  sp2, 107° 
C)  sp3, 109.5° 
D)  sp3, 1070 
E)  sp2, 1200 
A)  sp2, 109.5° 
B)  sp2, 107° 
C)  sp3, 109.5° 
D)  sp3, 1070 
E)  sp2, 1200

Question 2

What is the strongest intermolecular force present in the following compound?

Accepted Answer

A)  ion-dipole interactions 
B)  London dispersion forces 
C)  dipole-dipole interactions 
D)  hydrogen bonding 
E)  covalent bonding 
A)  ion-dipole interactions 
B)  London dispersion forces 
C)  dipole-dipole interactions 
D)  hydrogen bonding 
E)  covalent bonding

Question 3

Which of the following compounds have the lowest boiling point?

Accepted Answer

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

Question 4

The carbon and oxygen atoms in carbon monoxide are connected by which type of bond(s)?

Accepted Answer

A)  a sigma ( $\sigma$) bond 
B)  two sigma ( $\sigma$) bonds 
C)  a pi ($\pi$) bond 
D)  two pi ($\pi$) bonds 
E)  both A and D 
A)  a sigma ( $\sigma$) bond 
B)  two sigma ( $\sigma$) bonds 
C)  a pi ($\pi$) bond 
D)  two pi ($\pi$) bonds 
E)  both A and D

Question 5

Which of the following compounds have trigonal planar electron geometry?

Accepted Answer

A)  I, II and III 
B)  I, II, IV and V 
C)  III and IV and V 
D)  II and III 
E)  All of these 
A)  I, II and III 
B)  I, II, IV and V 
C)  III and IV and V 
D)  II and III 
E)  All of these

Question 6

Which atom has the most $\delta$+ in the following compound?

Accepted Answer

A)  N 
B)  O 
C)  Br 
D)  H 
E)  C 
A)  N 
B)  O 
C)  Br 
D)  H 
E)  C

Question 7

What is the letter designation for the following atomic orbital?

Accepted Answer

A)  s 
B)  p 
C)  d 
D)  f 
E)  g 
A)  s 
B)  p 
C)  d 
D)  f 
E)  g

Question 8

What is the correct Lewis structure for N2O including the formal charges, if any?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 9

Which of the following compounds has polar covalent bonds?

Accepted Answer

A)  NH3 
B)  Na2O 
C)  H2 
D)  KF 
E)  Both A and C 
A)  NH3 
B)  Na2O 
C)  H2 
D)  KF 
E)  Both A and C

Question 10

Which of the following represents the ground state electron configuration for phosphorous?

Accepted Answer

A)  1s2 2s2 2p6 3s1 3p4 
B)  1s2 2s2 2p6 3s2 3p4 
C)  1s2 2s2 2p6 3s2 3p3 
D)  1s2 2s2 2p6 3s2 3p2 
E)  1s2 2s2 2p6 3s2 3p5 
A)  1s2 2s2 2p6 3s1 3p4 
B)  1s2 2s2 2p6 3s2 3p4 
C)  1s2 2s2 2p6 3s2 3p3 
D)  1s2 2s2 2p6 3s2 3p2 
E)  1s2 2s2 2p6 3s2 3p5

Question 11

Which of the following structures have 1+ formal charge on the central atom?

Accepted Answer

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

Question 12

Identify the compound with the strongest carbon - nitrogen bond.

Accepted Answer

A)  CH3CH2CH=NH 
B)  CH3CH2NH2 
C)  CH3CH2C≡N 
D)  The length of the carbon-nitrogen bonds are the same 
A)  CH3CH2CH=NH 
B)  CH3CH2NH2 
C)  CH3CH2C≡N 
D)  The length of the carbon-nitrogen bonds are the same

Question 13

Which of the indicated carbon atoms have sp2 hybridization state in the following compound?

Accepted Answer

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

Question 14

Which of the following compounds has a higher boiling point? Explain why.

Accepted Answer

Compound II has a higher boili

Question 15

Which is the longest C-C bond in the following compound?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  I and III 
E)  All of these 
A)  I 
B)  II 
C)  III 
D)  I and III 
E)  All of these

Question 16

Which of the following structures have a zero formal charge on the carbon atom?

Accepted Answer

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

Question 17

In an ammonium ion, nitrogen has a valence of 4, and zero nonbonding electrons. What is the correct formal charge of nitrogen with 4 covalent bonds?

Accepted Answer

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

Question 18

The lone pair of electrons in the methyl anion, CH3-, resides in which orbital?

Accepted Answer

A)  s2 
B)  p 
C)  sp 
D)  sp3 
E)  sp2 
A)  s2 
B)  p 
C)  sp 
D)  sp3 
E)  sp2

Question 19

Which of the following statements best describes the C-Cl bond in the following compound?

Accepted Answer

A)  nonpolar; no dipole 
B)  polar; $\delta$+ at carbon and $\delta$- at chlorine 
C)  polar;$\delta$- at carbon and $\delta$+ at chlorine 
D)  ionic 
E)  None of these. 
A)  nonpolar; no dipole 
B)  polar; $\delta$+ at carbon and $\delta$- at chlorine 
C)  polar;$\delta$- at carbon and $\delta$+ at chlorine 
D)  ionic 
E)  None of these.

Question 20

What is the correct Lewis structure for CH3CO2H?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Exam 1: A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

What is the hybridization state and approximate bond angle around nitrogen in the following compound?

What is the strongest intermolecular force present in the following compound?

Which of the following compounds have the lowest boiling point?

The carbon and oxygen atoms in carbon monoxide are connected by which type of bond(s)?

Which of the following compounds have trigonal planar electron geometry?

Which atom has the most δ\deltaδ + in the following compound?

What is the letter designation for the following atomic orbital?

What is the correct Lewis structure for N2O including the formal charges, if any?

Which of the following compounds has polar covalent bonds?

Which of the following represents the ground state electron configuration for phosphorous?

Which of the following structures have 1+ formal charge on the central atom?

Identify the compound with the strongest carbon - nitrogen bond.

Which of the indicated carbon atoms have sp2 hybridization state in the following compound?

Which of the following compounds has a higher boiling point? Explain why.

Which is the longest C-C bond in the following compound?

Which of the following structures have a zero formal charge on the carbon atom?

In an ammonium ion, nitrogen has a valence of 4, and zero nonbonding electrons. What is the correct formal charge of nitrogen with 4 covalent bonds?

The lone pair of electrons in the methyl anion, CH3-, resides in which orbital?

Which of the following statements best describes the C-Cl bond in the following compound?

What is the correct Lewis structure for CH3CO2H?

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Which atom has the most $\delta$ + in the following compound? $Which atom has the most \delta + in the following compound?$

What is the correct Lewis structure for N₂O including the formal charges, if any?

Which of the indicated carbon atoms have sp² hybridization state in the following compound?

The lone pair of electrons in the methyl anion, CH₃^-, resides in which orbital?

What is the correct Lewis structure for CH₃CO₂H?