Question 1

What is the molecular geometry of the atoms bonded to the nitrogen atom indicated with arrow II?

Accepted Answer

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

Question 2

Which type(s)of molecular model illustrate the three-dimensional shape of a molecule?

Accepted Answer

A)  ball-and-stick 
B)  Lewis dot structure 
C)  space-filling 
D)  Lewis dot and space-filling 
E)  ball-and-stick and space-filling 
A)  ball-and-stick 
B)  Lewis dot structure 
C)  space-filling 
D)  Lewis dot and space-filling 
E)  ball-and-stick and space-filling

Question 3

Which element is the LEAST electronegative?

Accepted Answer

A)  potassium 
B)  hydrogen 
C)  fluorine 
D)  carbon 
E)  oxygen 
A)  potassium 
B)  hydrogen 
C)  fluorine 
D)  carbon 
E)  oxygen

Question 4

How many electron groups are found on the nitrogen atom of nitrogen trichloride (NCl3)?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  five 
A)  one 
B)  two 
C)  three 
D)  four 
E)  five

Question 5

In molecules with permanent dipoles, _______ are the attraction of the positive end of a dipole on one molecule with the negative end of the dipole on another molecule.

Accepted Answer

A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces 
A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces

Question 6

Nitrogen trichloride, once used as a bleaching agent, causes neurological disorder and was banned in 1949.Which of the following is a correct Lewis structure for nitrogen trichloride (NCl3)?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d

Question 7

Which of the following molecules contains polar bonds but is nonpolar overall?

Accepted Answer

A)  Cl2 
B)  CF4 
C)  H2O 
D)  N2 
E)  NH3 
A)  Cl2 
B)  CF4 
C)  H2O 
D)  N2 
E)  NH3

Question 8

Does formaldehyde have a permanent dipole?

Accepted Answer

A)  Yes.The carbon is partially negative, and the oxygen is partially positive. 
B)  Yes.The carbon is partially negative, and the hydrogen is partially positive. 
C)  Yes.The carbon is partially positive, and the oxygen is partially negative. 
D)  Yes.The carbon is partially positive, and the hydrogen is partially negative. 
E)  No.Formaldehyde only has a temporary dipole. 
A)  Yes.The carbon is partially negative, and the oxygen is partially positive. 
B)  Yes.The carbon is partially negative, and the hydrogen is partially positive. 
C)  Yes.The carbon is partially positive, and the oxygen is partially negative. 
D)  Yes.The carbon is partially positive, and the hydrogen is partially negative. 
E)  No.Formaldehyde only has a temporary dipole.

Question 9

Which of the molecules below does NOT have a permanent dipole?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e

Question 10

What is the molecular geometry of the carbon in dichloromethane (CH2Cl2)?

Accepted Answer

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

Question 11

An atom in a molecule has one lone pair and three atoms bonded to it.What is the molecular geometry of this atom?

Accepted Answer

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

Question 12

Which of the following steps is done first to determine the molecular geometry of dichloromethane (CH2Cl2)?

Accepted Answer

A)  Calculate the molecular weight. 
B)  Look up the bond angle of a H-C-H bond. 
C)  Determine the electron geometry. 
D)  Construct the Lewis structure. 
E)  The molecular geometry can be determined without doing any prior steps. 
A)  Calculate the molecular weight. 
B)  Look up the bond angle of a H-C-H bond. 
C)  Determine the electron geometry. 
D)  Construct the Lewis structure. 
E)  The molecular geometry can be determined without doing any prior steps.

Question 13

Ethylene is used as a starting material in making plastics.It has a molecular formula of C2H4.Which of the following structures is the correct Lewis structure for ethylene?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e

Question 14

What is the strongest type of intermolecular interaction attracting molecules of propane together?

Accepted Answer

A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces 
A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces

Question 15

What is the electron geometry of the carbon in chloroform (CHCl3)?

Accepted Answer

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

Question 16

An atom in a molecule has two lone pairs and two atoms bonded to it.What is the molecular geometry of this atom?

Accepted Answer

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

Question 17

How many nonbonding pairs are on the carbon in dichloromethane (CH2Cl2)?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 18

Which of the following interactions is the strongest?

Accepted Answer

A)  dipole-dipole forces 
B)  hydrogen bonding forces 
C)  dispersion forces 
D)  covalent bond 
E)  All of the above interactions have the same strength. 
A)  dipole-dipole forces 
B)  hydrogen bonding forces 
C)  dispersion forces 
D)  covalent bond 
E)  All of the above interactions have the same strength.

Question 19

Formaldehyde is used as a preservative and disinfectant.It has the structure shown below.What is the strongest type of intermolecular interaction attracting molecules of formaldehyde together?

Accepted Answer

A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces 
A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces

Question 20

An atom in a molecule has a trigonal planar molecular geometry and a formula of MX3.What is the angle between the atoms in this molecule?

Accepted Answer

A)  360º 
B)  180º 
C)  120º 
D)  109.5º 
E)  90º 
A)  360º 
B)  180º 
C)  120º 
D)  109.5º 
E)  90º

What is the molecular geometry of the atoms bonded to the nitrogen atom indicated with arrow II?

Which type(s)of molecular model illustrate the three-dimensional shape of a molecule?

Which element is the LEAST electronegative?

How many electron groups are found on the nitrogen atom of nitrogen trichloride (NCl₃)?

In molecules with permanent dipoles, _______ are the attraction of the positive end of a dipole on one molecule with the negative end of the dipole on another molecule.

Nitrogen trichloride, once used as a bleaching agent, causes neurological disorder and was banned in 1949.Which of the following is a correct Lewis structure for nitrogen trichloride (NCl₃)?

Which of the following molecules contains polar bonds but is nonpolar overall?

Does formaldehyde have a permanent dipole?

Which of the molecules below does NOT have a permanent dipole?

What is the molecular geometry of the carbon in dichloromethane (CH₂Cl₂)?

An atom in a molecule has one lone pair and three atoms bonded to it.What is the molecular geometry of this atom?

Which of the following steps is done first to determine the molecular geometry of dichloromethane (CH₂Cl₂)?

Ethylene is used as a starting material in making plastics.It has a molecular formula of C₂H₄.Which of the following structures is the correct Lewis structure for ethylene?

What is the strongest type of intermolecular interaction attracting molecules of propane together?

What is the electron geometry of the carbon in chloroform (CHCl₃)?

An atom in a molecule has two lone pairs and two atoms bonded to it.What is the molecular geometry of this atom?

How many nonbonding pairs are on the carbon in dichloromethane (CH₂Cl₂)?

Which of the following interactions is the strongest?

Formaldehyde is used as a preservative and disinfectant.It has the structure shown below.What is the strongest type of intermolecular interaction attracting molecules of formaldehyde together?

An atom in a molecule has a trigonal planar molecular geometry and a formula of MX₃.What is the angle between the atoms in this molecule?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 4: Molecular Geometry, Polarity, and Intermolecular

What is the molecular geometry of the atoms bonded to the nitrogen atom indicated with arrow II?

Which type(s)of molecular model illustrate the three-dimensional shape of a molecule?

Which element is the LEAST electronegative?

How many electron groups are found on the nitrogen atom of nitrogen trichloride (NCl3)?

In molecules with permanent dipoles, _______ are the attraction of the positive end of a dipole on one molecule with the negative end of the dipole on another molecule.

Nitrogen trichloride, once used as a bleaching agent, causes neurological disorder and was banned in 1949.Which of the following is a correct Lewis structure for nitrogen trichloride (NCl3)?

Which of the following molecules contains polar bonds but is nonpolar overall?

Does formaldehyde have a permanent dipole?

Which of the molecules below does NOT have a permanent dipole?

What is the molecular geometry of the carbon in dichloromethane (CH2Cl2)?

An atom in a molecule has one lone pair and three atoms bonded to it.What is the molecular geometry of this atom?

Which of the following steps is done first to determine the molecular geometry of dichloromethane (CH2Cl2)?

Ethylene is used as a starting material in making plastics.It has a molecular formula of C2H4.Which of the following structures is the correct Lewis structure for ethylene?

What is the strongest type of intermolecular interaction attracting molecules of propane together?

What is the electron geometry of the carbon in chloroform (CHCl3)?

An atom in a molecule has two lone pairs and two atoms bonded to it.What is the molecular geometry of this atom?

How many nonbonding pairs are on the carbon in dichloromethane (CH2Cl2)?

Which of the following interactions is the strongest?

Formaldehyde is used as a preservative and disinfectant.It has the structure shown below.What is the strongest type of intermolecular interaction attracting molecules of formaldehyde together?

An atom in a molecule has a trigonal planar molecular geometry and a formula of MX3.What is the angle between the atoms in this molecule?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

How many electron groups are found on the nitrogen atom of nitrogen trichloride (NCl₃)?

Nitrogen trichloride, once used as a bleaching agent, causes neurological disorder and was banned in 1949.Which of the following is a correct Lewis structure for nitrogen trichloride (NCl₃)?

What is the molecular geometry of the carbon in dichloromethane (CH₂Cl₂)?

Which of the following steps is done first to determine the molecular geometry of dichloromethane (CH₂Cl₂)?

Ethylene is used as a starting material in making plastics.It has a molecular formula of C₂H₄.Which of the following structures is the correct Lewis structure for ethylene?

What is the electron geometry of the carbon in chloroform (CHCl₃)?

How many nonbonding pairs are on the carbon in dichloromethane (CH₂Cl₂)?

An atom in a molecule has a trigonal planar molecular geometry and a formula of MX₃.What is the angle between the atoms in this molecule?