Question 1

Carbon monoxide contains resonance Lewis structures.

Accepted Answer

A) True 
 B)False

Question 2

What is the molecular geometry of NH4+?

Accepted Answer

A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

Question 3

Lewis structures only use the valence electrons in determining the bonding.

Accepted Answer

A) True 
 B)False

Question 4

Resonance structures are the best representation we can draw but do not accurately reflect the true structure.

Accepted Answer

A) True 
 B)False

Question 5

When calculating the number of electrons for the Lewis structure of a polyatomic ion,you must add one electron for each negative charge and subtract one electron for each positive charge.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following statements are TRUE about the BF3 molecule?

Accepted Answer

A) BF3 has a trigonal planar molecular geometry. 
B) BF3 violates the octet rule for the central atom. 
C) BF3 is nonpolar. 
D) All of the above statements are true. 
E) None of the above are true. 
A) BF3 has a trigonal planar molecular geometry. 
B) BF3 violates the octet rule for the central atom. 
C) BF3 is nonpolar. 
D) All of the above statements are true. 
E) None of the above are true.

Question 7

A correct Lewis structure for an atom of carbon would have eight dots surrounding the symbol of the element.

Accepted Answer

A) True 
 B)False

Question 8

Which term matches the definition: A separation of charge within a bond?

Accepted Answer

A) coulombic attraction 
B) dipole moment 
C) pure covalent 
D) nonpolar covalent 
E) electronegativity 
A) coulombic attraction 
B) dipole moment 
C) pure covalent 
D) nonpolar covalent 
E) electronegativity

Question 9

When you have 4 electron groups,the electron geometry is tetrahedral.

Accepted Answer

A) True 
 B)False

Question 10

The elements with the highest electronegativity values tend to be found in the:

Accepted Answer

A) upper right-side of the periodic table. 
B) lower right-side of the periodic table. 
C) upper left-side of the periodic table. 
D) lower left-side of the periodic table. 
E) center of the periodic table. 
A) upper right-side of the periodic table. 
B) lower right-side of the periodic table. 
C) upper left-side of the periodic table. 
D) lower left-side of the periodic table. 
E) center of the periodic table.

Question 11

How many bonding electrons are in the Lewis structure of N2?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 6 
E) none of the above 
A) 2 
B) 3 
C) 4 
D) 6 
E) none of the above

Question 12

The electronegativity value for N is 3.0 and that for O is 3.5.Based on these values,which of the following statements is TRUE about the compound NO?

Accepted Answer

A) NO is an ionic compound. 
B) NO is a pure covalent compound. 
C) NO is a polar covalent compound. 
D) There is not enough enough information to determine the nature of NO. 
E) None of the above statements is true. 
A) NO is an ionic compound. 
B) NO is a pure covalent compound. 
C) NO is a polar covalent compound. 
D) There is not enough enough information to determine the nature of NO. 
E) None of the above statements is true.

Question 13

The compound H2S contains polar bonds but the molecule is nonpolar.

Accepted Answer

A) True 
 B)False

Question 14

Which sequence below represents the proper order of increasing bond strength?

Accepted Answer

A) single < double < triple 
B) double < single < triple 
C) single < triple < double 
D) triple < double < single 
E) none of the above 
A) single < double < triple 
B) double < single < triple 
C) single < triple < double 
D) triple < double < single 
E) none of the above

Question 15

What is the angle between electron groups in the linear electron geometry?

Accepted Answer

A) 90° 
B) 109.5° 
C) 120° 
D) 180° 
E) not enough information 
A) 90° 
B) 109.5° 
C) 120° 
D) 180° 
E) not enough information

Question 16

The correct Lewis structure for   shows that the molecule contains two double bonds.

Accepted Answer

A) True 
 B)False

Question 17

How many lone electron pairs does the ClO (-1 charged)polyatomic anion have?

Accepted Answer

A) one 
B) three 
C) six 
D) two 
E) none of the above 
A) one 
B) three 
C) six 
D) two 
E) none of the above

Question 18

The central atom in the chlorite anion,ClO2- is surrounded by:

Accepted Answer

A) one bonding and three unshared pairs of electrons. 
B) two bonding and two unshared pairs of electrons. 
C) two bonding and one unshared pair of electrons. 
D) two double bonds and no unshared pairs of electrons. 
E) none of the above 
A) one bonding and three unshared pairs of electrons. 
B) two bonding and two unshared pairs of electrons. 
C) two bonding and one unshared pair of electrons. 
D) two double bonds and no unshared pairs of electrons. 
E) none of the above

Question 19

Which of the following has a tetrahedral electron geometry and a trigonal pyramidal molecular geometry?

Accepted Answer

A) Br2O 
B) GeH4 
C) SO2 
D) PF3 
E) none of the above 
A) Br2O 
B) GeH4 
C) SO2 
D) PF3 
E) none of the above

Question 20

Which compound listed below will dissolve in NH3?

Accepted Answer

A) H2S 
B) CO2 
C) O2 
D) all of the compounds 
E) none of the compounds 
A) H2S 
B) CO2 
C) O2 
D) all of the compounds 
E) none of the compounds

Carbon monoxide contains resonance Lewis structures.

What is the molecular geometry of NH₄⁺?

Lewis structures only use the valence electrons in determining the bonding.

Resonance structures are the best representation we can draw but do not accurately reflect the true structure.

When calculating the number of electrons for the Lewis structure of a polyatomic ion,you must add one electron for each negative charge and subtract one electron for each positive charge.

Which of the following statements are TRUE about the BF₃molecule?

A correct Lewis structure for an atom of carbon would have eight dots surrounding the symbol of the element.

Which term matches the definition: A separation of charge within a bond?

When you have 4 electron groups,the electron geometry is tetrahedral.

The elements with the highest electronegativity values tend to be found in the:

How many bonding electrons are in the Lewis structure of N₂?

The electronegativity value for N is 3.0 and that for O is 3.5.Based on these values,which of the following statements is TRUE about the compound NO?

The compound H₂S contains polar bonds but the molecule is nonpolar.

Which sequence below represents the proper order of increasing bond strength?

What is the angle between electron groups in the linear electron geometry?

The correct Lewis structure for shows that the molecule contains two double bonds.

How many lone electron pairs does the ClO (-1 charged)polyatomic anion have?

The central atom in the chlorite anion,ClO₂^-is surrounded by:

Which of the following has a tetrahedral electron geometry and a trigonal pyramidal molecular geometry?

Which compound listed below will dissolve in NH₃?

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Exam 10: Chemical Bonding

Carbon monoxide contains resonance Lewis structures.

What is the molecular geometry of NH4+?

Lewis structures only use the valence electrons in determining the bonding.

Resonance structures are the best representation we can draw but do not accurately reflect the true structure.

When calculating the number of electrons for the Lewis structure of a polyatomic ion,you must add one electron for each negative charge and subtract one electron for each positive charge.

Which of the following statements are TRUE about the BF3 molecule?

A correct Lewis structure for an atom of carbon would have eight dots surrounding the symbol of the element.

Which term matches the definition: A separation of charge within a bond?

When you have 4 electron groups,the electron geometry is tetrahedral.

The elements with the highest electronegativity values tend to be found in the:

How many bonding electrons are in the Lewis structure of N2?

The electronegativity value for N is 3.0 and that for O is 3.5.Based on these values,which of the following statements is TRUE about the compound NO?

The compound H2S contains polar bonds but the molecule is nonpolar.

Which sequence below represents the proper order of increasing bond strength?

What is the angle between electron groups in the linear electron geometry?

The correct Lewis structure for shows that the molecule contains two double bonds.

How many lone electron pairs does the ClO (-1 charged)polyatomic anion have?

The central atom in the chlorite anion,ClO2- is surrounded by:

Which of the following has a tetrahedral electron geometry and a trigonal pyramidal molecular geometry?

Which compound listed below will dissolve in NH3?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

What is the molecular geometry of NH₄⁺?

Which of the following statements are TRUE about the BF₃molecule?

How many bonding electrons are in the Lewis structure of N₂?

The compound H₂S contains polar bonds but the molecule is nonpolar.

The central atom in the chlorite anion,ClO₂^-is surrounded by:

Which compound listed below will dissolve in NH₃?