Question 1

Which of these is the correct formula for aluminum oxide?

Accepted Answer

A)  AlO 
B)  Al2O 
C)  AlO2 
D)  Al2O3 
E)  Al2O2 
A)  AlO 
B)  Al2O 
C)  AlO2 
D)  Al2O3 
E)  Al2O2

Question 2

Which of these is the correct formula for strontium iodide?

Accepted Answer

A)  SrI 
B)  SrI2 
C)  Sr2I 
D)  SrI3 
E)  Sr2I2 
A)  SrI 
B)  SrI2 
C)  Sr2I 
D)  SrI3 
E)  Sr2I2

Question 3

Which of these is the correct molecular geometry of CO2?

Accepted Answer

A)  Linear 
B)  Trigonal planar 
C)  Tetrahedral 
D)  Trigonal pyramidal 
E)  Bent 
A)  Linear 
B)  Trigonal planar 
C)  Tetrahedral 
D)  Trigonal pyramidal 
E)  Bent

Question 4

Which of these molecules will have a linear electron geometry and a trigonal pyramidal molecular geometry?

Accepted Answer

A)  PCl3 
B)  H2O 
C)  C2H2 
D)  CH3Cl 
E)  None of these 
A)  PCl3 
B)  H2O 
C)  C2H2 
D)  CH3Cl 
E)  None of these

Question 5

Covalent bonds are formed when electrons are _____.

Accepted Answer

A)  transferred from one atom to another 
B)  split into smaller units 
C)  shared between atoms 
D)  destroyed during bonding 
E)  heated during bonding 
A)  transferred from one atom to another 
B)  split into smaller units 
C)  shared between atoms 
D)  destroyed during bonding 
E)  heated during bonding

Question 6

_____ is based on the idea that the negative charges of bonding electrons and lone pair electrons in a molecule repel each other.

Accepted Answer

A)  VSEPR theory 
B)  Dalton's theory 
C)  Bohr's atomic theory 
D)  Lewis bonding theory 
E)  Einstein's theory of relativity 
A)  VSEPR theory 
B)  Dalton's theory 
C)  Bohr's atomic theory 
D)  Lewis bonding theory 
E)  Einstein's theory of relativity

Question 7

Which of the following is the molecular geometry of  NH4+?

Accepted Answer

A)  Trigonal planar 
B)  Tetrahedral 
C)  Trigonal pyramidal 
D)  Bent 
E)  Linear 
A)  Trigonal planar 
B)  Tetrahedral 
C)  Trigonal pyramidal 
D)  Bent 
E)  Linear

Question 8

Which of these molecules will have a tetrahedral molecular geometry?

Accepted Answer

A)  NH3 
B)  N2O 
C)  C2H2 
D)  CH3Cl 
E)  MgO 
A)  NH3 
B)  N2O 
C)  C2H2 
D)  CH3Cl 
E)  MgO

Question 9

A _____ is also called a dipole.

Accepted Answer

A)  polar bond 
B)  nonpolar bond 
C)  ionic bond 
D)  covalent bond 
E)  metallic bond 
A)  polar bond 
B)  nonpolar bond 
C)  ionic bond 
D)  covalent bond 
E)  metallic bond

Question 10

NO  2  −  has _____ double bond(s), _____ single bond(s), _____ lone (nonbonding) pair(s) of electrons, and _____ resonance forms.

Accepted Answer

A)  2; 0; 8; 2 
B)  1; 1; 8; 3 
C)  1; 1; 6; 2 
D)  0; 2; 10; 0 
E)  2; 0; 12; 2 
A)  2; 0; 8; 2 
B)  1; 1; 8; 3 
C)  1; 1; 6; 2 
D)  0; 2; 10; 0 
E)  2; 0; 12; 2

Question 11

How many lone pairs of electrons are present around the central atom in CO2?

Accepted Answer

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

Question 12

Which of these theories is utilized in the prediction of molecular polarity?

Accepted Answer

A)  Dalton's theory 
B)  VSEPR theory 
C)  Bohr's atomic theory 
D)  Einstein's relativity theory 
E)  Lewis bonding theory 
A)  Dalton's theory 
B)  VSEPR theory 
C)  Bohr's atomic theory 
D)  Einstein's relativity theory 
E)  Lewis bonding theory

Question 13

Ionic bonds are formed when electrons are _____.

Accepted Answer

A)  transferred from one atom to another 
B)  split into smaller units 
C)  shared between atoms 
D)  destroyed during bonding 
E)  transferred to a higher energy level 
A)  transferred from one atom to another 
B)  split into smaller units 
C)  shared between atoms 
D)  destroyed during bonding 
E)  transferred to a higher energy level

Question 14

Which of these molecules contains a triple bond?

Accepted Answer

A)  NH3 
B)  OCl2 
C)  C2H2 
D)  H2O 
E)  MgO 
A)  NH3 
B)  OCl2 
C)  C2H2 
D)  H2O 
E)  MgO

Question 15

The molecular geometry of a two-atom molecule _____.

Accepted Answer

A)  is always bent 
B)  is always tetrahedral 
C)  is always linear 
D)  depends on the atoms involved 
E)  depends on the type of bonding 
A)  is always bent 
B)  is always tetrahedral 
C)  is always linear 
D)  depends on the atoms involved 
E)  depends on the type of bonding

Question 16

What does the V in VSEPR theory stand for?

Accepted Answer

A)  Very 
B)  Variable 
C)  Valence 
D)  Vanadium 
E)  Volume 
A)  Very 
B)  Variable 
C)  Valence 
D)  Vanadium 
E)  Volume

Question 17

How many bonding pairs of electrons are present around the central atom in CO2?

Accepted Answer

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

Question 18

Electronegativity is _____.

Accepted Answer

A)  the ability of an atom to form positively charged ions 
B)  the ability of an atom to form negatively charged ions 
C)  the ability of an atom to attract protons in a covalent bond 
D)  the ability of an atom to attract electrons in a covalent bond 
E)  the ability of an atom to remain neutral 
A)  the ability of an atom to form positively charged ions 
B)  the ability of an atom to form negatively charged ions 
C)  the ability of an atom to attract protons in a covalent bond 
D)  the ability of an atom to attract electrons in a covalent bond 
E)  the ability of an atom to remain neutral

Question 19

Identify the element X present in the fourth row of the periodic table that forms the following ion:
​

Accepted Answer

A)  Ge 
B)  As 
C)  Se 
D)  Kr 
E)  Br 
A)  Ge 
B)  As 
C)  Se 
D)  Kr 
E)  Br

Question 20

Which of these molecules will have a tetrahedral electron geometry and a bent molecular geometry?

Accepted Answer

A)  PCl3 
B)  H2O 
C)  C2H2 
D)  CH3Cl 
E)  SO2 
A)  PCl3 
B)  H2O 
C)  C2H2 
D)  CH3Cl 
E)  SO2

Which of these is the correct formula for aluminum oxide?

Which of these is the correct formula for strontium iodide?

Which of these is the correct molecular geometry of CO₂?

Which of these molecules will have a linear electron geometry and a trigonal pyramidal molecular geometry?

Covalent bonds are formed when electrons are _____.

_____ is based on the idea that the negative charges of bonding electrons and lone pair electrons in a molecule repel each other.

Which of the following is the molecular geometry of NH₄⁺?

Which of these molecules will have a tetrahedral molecular geometry?

A _____ is also called a dipole.

NO ₂⁻ has ___ double bond(s), _ single bond(s), _ lone (nonbonding) pair(s) of electrons, and ___ resonance forms.

How many lone pairs of electrons are present around the central atom in CO₂?

Which of these theories is utilized in the prediction of molecular polarity?

Ionic bonds are formed when electrons are _____.

Which of these molecules contains a triple bond?

The molecular geometry of a two-atom molecule _____.

What does the V in VSEPR theory stand for?

How many bonding pairs of electrons are present around the central atom in CO₂?

Electronegativity is _____.

Identify the element X present in the fourth row of the periodic table that forms the following ion:

Which of these molecules will have a tetrahedral electron geometry and a bent molecular geometry?

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Exam 5: Chemical Bonding

Which of these is the correct formula for aluminum oxide?

Which of these is the correct formula for strontium iodide?

Which of these is the correct molecular geometry of CO2?

Which of these molecules will have a linear electron geometry and a trigonal pyramidal molecular geometry?

Covalent bonds are formed when electrons are _____.

_____ is based on the idea that the negative charges of bonding electrons and lone pair electrons in a molecule repel each other.

Which of the following is the molecular geometry of NH4+?

Which of these molecules will have a tetrahedral molecular geometry?

A _____ is also called a dipole.

NO 2 − has _____ double bond(s), _____ single bond(s), _____ lone (nonbonding) pair(s) of electrons, and _____ resonance forms.

How many lone pairs of electrons are present around the central atom in CO2?

Which of these theories is utilized in the prediction of molecular polarity?

Ionic bonds are formed when electrons are _____.

Which of these molecules contains a triple bond?

The molecular geometry of a two-atom molecule _____.

What does the V in VSEPR theory stand for?

How many bonding pairs of electrons are present around the central atom in CO2?

Electronegativity is _____.

Identify the element X present in the fourth row of the periodic table that forms the following ion: ​

Which of these molecules will have a tetrahedral electron geometry and a bent molecular geometry?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

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The Chemistry of Food

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Which of these is the correct molecular geometry of CO₂?

Which of the following is the molecular geometry of NH₄⁺?

NO ₂⁻ has ___ double bond(s), _ single bond(s), _ lone (nonbonding) pair(s) of electrons, and ___ resonance forms.

How many lone pairs of electrons are present around the central atom in CO₂?

How many bonding pairs of electrons are present around the central atom in CO₂?

Identify the element X present in the fourth row of the periodic table that forms the following ion: