Question 1

Which of the following compounds has a dipole moment? Indicate the direction of the dipole moment.

Accepted Answer

Compound I has no di

Question 2

According to molecular orbital theory, the destructive interference of two atomic orbitals results in a(n) _______.

Accepted Answer

antibondin

Question 3

What is the electronic configuration for the nitride ion?

Accepted Answer

A)  1s2 2s2 2p0 
B)  1s2 2s2 2p2 
C)  1s2 2s22p3 
D)  1s2 2s22p4 
E)  1s2 2s2 2p6 
A)  1s2 2s2 2p0 
B)  1s2 2s2 2p2 
C)  1s2 2s22p3 
D)  1s2 2s22p4 
E)  1s2 2s2 2p6

Question 4

Which of the following is the correct representation of the dipole for a P-Cl bond?

Accepted Answer

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

Question 5

Which of the following compounds does not have dipole moment?

Accepted Answer

A)  HCl 
B)  NCl3 
C)  CO 
D)  BF3 
E)  All have dipole moment 
A)  HCl 
B)  NCl3 
C)  CO 
D)  BF3 
E)  All have dipole moment

Question 6

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

Accepted Answer

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

Question 7

Which of the following compounds has two lone pairs on the central atom?

Accepted Answer

A)  CO2 
B)  SCl2 
C)  NF3 
D)  CS2 
E)  SO3 
A)  CO2 
B)  SCl2 
C)  NF3 
D)  CS2 
E)  SO3

Question 8

Draw the Lewis structure for HCOOH and predict the hybridization state, molecular geometry and approximate bond angle around the central atom.

Accepted Answer

@#IMG-DLM&_TB4454_00

Question 9

Interaction of the following two atomic orbitals results in what kind of molecular orbital, in the orientation shown?

Accepted Answer

pi bonding

Question 10

In quantum mechanics a node (nodal surface or plane) is ________ .

Accepted Answer

A)  location where $\varPsi$  is negative 
B)  location where $\varPsi$  is positive 
C)  location where $\varPsi$ 2 is positive 
D)  location where $\varPsi$ 2 is negative 
E)  location where $\varPsi$ is zero 
A)  location where $\varPsi$  is negative 
B)  location where $\varPsi$  is positive 
C)  location where $\varPsi$ 2 is positive 
D)  location where $\varPsi$ 2 is negative 
E)  location where $\varPsi$ is zero

Question 11

What is the hybridization state of the boron atom in the following compound?

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  sp3d 
E)  s2p 
A)  sp 
B)  sp2 
C)  sp3 
D)  sp3d 
E)  s2p

Question 12

Describe how soaps function as cleaning agents.

Accepted Answer

Soaps form clusters called micelles. The

Question 13

The molecular geometry of carbon tetrachloride, CCl4, is _________ .

Accepted Answer

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

Question 14

Carbon is considered to be _______.

Accepted Answer

A)  tetravalent 
B)  divalent 
C)  trivalent 
D)  monovalent 
E)  pentavalent 
A)  tetravalent 
B)  divalent 
C)  trivalent 
D)  monovalent 
E)  pentavalent

Question 15

What is the correct Lewis structure for hydrocyanic acid, HCN, 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 16

Identify the compound with the longest 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 17

What is the molecular geometry at the central atom in CH2Br2?

Accepted Answer

A)  trigonal planar 
B)  trigonal pyramidal 
C)  square planar 
D)  tetrahedral 
E)  None of these 
A)  trigonal planar 
B)  trigonal pyramidal 
C)  square planar 
D)  tetrahedral 
E)  None of these

Question 18

Which of the following compounds is most soluble in water?

Accepted Answer

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

Question 19

Rank the following compounds in decreasing order of boiling point.

Accepted Answer

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

Question 20

The C-C sigma bond in ethyne (H-C$\equiv$C-H) results from the overlap of which orbitals?

Accepted Answer

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

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

Which of the following compounds has a dipole moment? Indicate the direction of the dipole moment.

According to molecular orbital theory, the destructive interference of two atomic orbitals results in a(n) _______.

What is the electronic configuration for the nitride ion?

Which of the following is the correct representation of the dipole for a P-Cl bond?

Which of the following compounds does not have dipole moment?

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

Which of the following compounds has two lone pairs on the central atom?

Draw the Lewis structure for HCOOH and predict the hybridization state, molecular geometry and approximate bond angle around the central atom.

Interaction of the following two atomic orbitals results in what kind of molecular orbital, in the orientation shown?

In quantum mechanics a node (nodal surface or plane) is ________ .

What is the hybridization state of the boron atom in the following compound?

Describe how soaps function as cleaning agents.

The molecular geometry of carbon tetrachloride, CCl4, is _________ .

Carbon is considered to be _______.

What is the correct Lewis structure for hydrocyanic acid, HCN, including the formal charges, if any?

Identify the compound with the longest carbon - nitrogen bond.

What is the molecular geometry at the central atom in CH2Br2?

Which of the following compounds is most soluble in water?

Rank the following compounds in decreasing order of boiling point.

The C-C sigma bond in ethyne (H-C ≡\equiv≡ C-H) results from the overlap of which orbitals?

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

The molecular geometry of carbon tetrachloride, CCl₄, is _________ .

What is the molecular geometry at the central atom in CH₂Br₂?

The C-C sigma bond in ethyne (H-C $\equiv$ C-H) results from the overlap of which orbitals?