Question 1

Select the correct molecular structure for the given species from the choices below:
-SO32-

Accepted Answer

A) pyramidal 
B) tetrahedral 
C) square planar 
D) octahedral 
E) none of these 
A) pyramidal 
B) tetrahedral 
C) square planar 
D) octahedral 
E) none of these

Question 2

In which case is the bond polarity incorrect?

Accepted Answer

A) ($\delta$+H-F$\delta$-) 
B) ($\delta$+K-O$\delta$-) 
C) ($\delta$+Mg-H$\delta$-) 
D) ($\delta$+Cl-I$\delta$-) 
E) ($\delta$+Si-S$\delta$-) 
A) ($\delta$+H-F$\delta$-) 
B) ($\delta$+K-O$\delta$-) 
C) ($\delta$+Mg-H$\delta$-) 
D) ($\delta$+Cl-I$\delta$-) 
E) ($\delta$+Si-S$\delta$-)

Question 3

Which of the following bonds is least polar?

Accepted Answer

A) C-O 
B) H-C 
C) S-Cl 
D) Br-Br 
E) They are all nonpolar. 
A) C-O 
B) H-C 
C) S-Cl 
D) Br-Br 
E) They are all nonpolar.

Question 4

The molecular structure of BeF3- is

Accepted Answer

A) pyramidal 
B) none of these 
C) octahedral 
D) trigonal planar 
E) bent 
A) pyramidal 
B) none of these 
C) octahedral 
D) trigonal planar 
E) bent

Question 5

Select the correct molecular structure for the given species from the choices below:
-PF6-

Accepted Answer

A) pyramidal 
B) tetrahedral 
C) square planar 
D) octahedral 
E) none of these 
A) pyramidal 
B) tetrahedral 
C) square planar 
D) octahedral 
E) none of these

Question 6

Given the following Lewis structure:  
-How many electrons are shared between carbons 1 and 2?

Accepted Answer

A) 0 
B) 2 
C) 4 
D) 6 
E) 8 
A) 0 
B) 2 
C) 4 
D) 6 
E) 8

Question 7

Select the correct molecular structure for the given species from the choices below:
-XeF6

Accepted Answer

A) pyramidal 
B) tetrahedral 
C) square planar 
D) octahedral 
E) none of these 
A) pyramidal 
B) tetrahedral 
C) square planar 
D) octahedral 
E) none of these

Question 8

How many of the following molecules have all of their atoms in the same plane? H2C=CH2
OF2
H2CO
NH3
CO2
BeCl2

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
E) 7 
A) 3 
B) 4 
C) 5 
D) 6 
E) 7

Question 9

Which of the following statements is incorrect?

Accepted Answer

A) Ionic bonding results from the transfer of electrons from one atom to another. 
B) Dipole moments result from the unequal distribution of electrons in a molecule. 
C) The electrons in a polar bond are found nearer to the more electronegative element. 
D) A molecule with very polar bonds can be nonpolar. 
E) Linear molecules cannot have a net dipole moment. 
A) Ionic bonding results from the transfer of electrons from one atom to another. 
B) Dipole moments result from the unequal distribution of electrons in a molecule. 
C) The electrons in a polar bond are found nearer to the more electronegative element. 
D) A molecule with very polar bonds can be nonpolar. 
E) Linear molecules cannot have a net dipole moment.

Question 10

Select the correct molecular structure for the given species from the choices below:
-H2O

Accepted Answer

A) linear 
B) trigonal planar 
C) tetrahedral 
D) bent 
E) none of these 
A) linear 
B) trigonal planar 
C) tetrahedral 
D) bent 
E) none of these

Question 11

The ability of an atom in a molecule to attract shared electrons to itself is called __________.

Accepted Answer

The answer of The ability of an atom in a...

Question 12

In the Lewis structure for ICl2-,how many lone pairs of electrons are around the central iodine atom?

Accepted Answer

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

Question 13

Consider the compound crotonaldehyde,whose skeleton is:  
-How many electrons must be shown (as bonding or nonbonding electrons)in the Lewis structure of this molecule?

Accepted Answer

A) 12 
B) 18 
C) 24 
D) 28 
E) 32 
A) 12 
B) 18 
C) 24 
D) 28 
E) 32

Question 14

Which of the following molecules has a dipole moment?

Accepted Answer

A) BH3 
B) SiF4 
C) PF3 
D) O2 
E) none of these 
A) BH3 
B) SiF4 
C) PF3 
D) O2 
E) none of these

Question 15

Which of the following molecules exhibits the greatest bond energy?

Accepted Answer

A) F2 
B) Cl2 
C) Br2 
D) I2 
E) all the same 
A) F2 
B) Cl2 
C) Br2 
D) I2 
E) all the same

Question 16

When molten sulfur reacts with chlorine gas,a vile-smelling orange liquid forms that is found to have the empirical formula SCl.Which of the following could be the correct Lewis structure for this compound?

Accepted Answer

A)    
B)    
C)    
D)    
E)    : 
A)    
B)    
C)    
D)    
E)    :

Question 17

A molecule that has a center of positive charge and a center of negative charge is said to be __________.

Accepted Answer

The answer of A molecule that has a center of...

Question 18

Choose the molecule with the strongest bond.

Accepted Answer

A) F2 
B) Cl2 
C) Br2 
D) I2 
E) All are equal. 
A) F2 
B) Cl2 
C) Br2 
D) I2 
E) All are equal.

Question 19

Choose the statement that best describes the PbCl4 molecule in the gas phase.

Accepted Answer

A) The bond angles are all about 109°. 
B) The molecule is polar. 
C) The molecule has a dipole moment. 
D) The bonds are nonpolar. 
E) More than one of the above. 
A) The bond angles are all about 109°. 
B) The molecule is polar. 
C) The molecule has a dipole moment. 
D) The bonds are nonpolar. 
E) More than one of the above.

Question 20

What is the correct order of the following bonds in terms of decreasing polarity?

Accepted Answer

A) N-Cl,P-Cl,As-Cl 
B) P-Cl,N-Cl,As-Cl 
C) As-Cl,N-Cl,P-Cl 
D) P-Cl,As-Cl,N-Cl 
E) As-Cl,P-Cl,N-Cl 
A) N-Cl,P-Cl,As-Cl 
B) P-Cl,N-Cl,As-Cl 
C) As-Cl,N-Cl,P-Cl 
D) P-Cl,As-Cl,N-Cl 
E) As-Cl,P-Cl,N-Cl

Exam 8: Bonding: General Concepts

Select the correct molecular structure for the given species from the choices below: -SO32-

In which case is the bond polarity incorrect?

Which of the following bonds is least polar?

The molecular structure of BeF3- is

Select the correct molecular structure for the given species from the choices below: -PF6-

Given the following Lewis structure: -How many electrons are shared between carbons 1 and 2?

Select the correct molecular structure for the given species from the choices below: -XeF6

How many of the following molecules have all of their atoms in the same plane? H2C=CH2 OF2 H2CO NH3 CO2 BeCl2

Which of the following statements is incorrect?

Select the correct molecular structure for the given species from the choices below: -H2O

The ability of an atom in a molecule to attract shared electrons to itself is called __________.

In the Lewis structure for ICl2-,how many lone pairs of electrons are around the central iodine atom?

Consider the compound crotonaldehyde,whose skeleton is: -How many electrons must be shown (as bonding or nonbonding electrons)in the Lewis structure of this molecule?

Which of the following molecules has a dipole moment?

Which of the following molecules exhibits the greatest bond energy?

When molten sulfur reacts with chlorine gas,a vile-smelling orange liquid forms that is found to have the empirical formula SCl.Which of the following could be the correct Lewis structure for this compound?

A molecule that has a center of positive charge and a center of negative charge is said to be __________.

Choose the molecule with the strongest bond.

Choose the statement that best describes the PbCl4 molecule in the gas phase.

What is the correct order of the following bonds in terms of decreasing polarity?

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Atomic Structure and Periodicity

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

Select the correct molecular structure for the given species from the choices below: -SO₃²^-

The molecular structure of BeF₃^- is

Select the correct molecular structure for the given species from the choices below: -PF₆^-

Select the correct molecular structure for the given species from the choices below: -XeF₆

How many of the following molecules have all of their atoms in the same plane? H₂C=CH₂ OF₂ H₂CO NH₃ CO₂ BeCl₂

Select the correct molecular structure for the given species from the choices below: -H₂O

In the Lewis structure for ICl₂^-,how many lone pairs of electrons are around the central iodine atom?

Choose the statement that best describes the PbCl₄ molecule in the gas phase.