Question 1

Of the following solvents: ethanol, water, hexane, which is the most polar?

Accepted Answer

A) Ethanol 
B) Hexane 
C) Water 
D) They are all of roughly equal polarity. 
A) Ethanol 
B) Hexane 
C) Water 
D) They are all of roughly equal polarity.

Question 2

In terms of polarity, what best describes the molecule NH3?

Accepted Answer

A) A non-polar molecule composed of polar covalent bonds 
B) A polar molecule composed of nonpolar covalent bonds 
C) A polar molecule composed of polar covalent bonds 
D) A non-polar molecule composed of nonpolar covalent bonds 
A) A non-polar molecule composed of polar covalent bonds 
B) A polar molecule composed of nonpolar covalent bonds 
C) A polar molecule composed of polar covalent bonds 
D) A non-polar molecule composed of nonpolar covalent bonds

Question 3

How many non-tetrahedral carbon atoms are in this molecule, nicotine?

Accepted Answer

A) 5 
B) 4 
C) 3 
D) 2 
A) 5 
B) 4 
C) 3 
D) 2

Question 4

If a radioimmunoassay of LSD is run on a material that has no LSD in it, what will the final results show?

Accepted Answer

Only radio

Question 5

As you move from the top to the bottom of the periodic table, what happens to the electronegativity of the elements?

Accepted Answer

A) It increases. 
B) It decreases. 
C) Nothing, it remains relatively equal. 
D) More information is needed to tell. 
A) It increases. 
B) It decreases. 
C) Nothing, it remains relatively equal. 
D) More information is needed to tell.

Question 6

What does molecular polarity affect?

Accepted Answer

A) Solvent interaction 
B) Melting point and boiling point 
C) Both of the above. 
D) None of the above. 
A) Solvent interaction 
B) Melting point and boiling point 
C) Both of the above. 
D) None of the above.

Question 7

All covalent bonds involve the loss and gain of electrons.

Accepted Answer

A) True 
 B)False

Question 8

Why might an immunoassay test give a false positive for a blood sample?

Accepted Answer

Because of cross rea

Question 9

What must interact for a covalent bond to form?

Accepted Answer

A) Two or more protons 
B) Two or more electrons 
C) Two electrons 
D) None of the above. 
A) Two or more protons 
B) Two or more electrons 
C) Two electrons 
D) None of the above.

Question 10

Many organic compounds have numerous C-H bonds. What is the average difference in electronegativity in one of them?

Accepted Answer

A) 4.5 
B) 2.5 
C) 2.1 
D) 0.4 
A) 4.5 
B) 2.5 
C) 2.1 
D) 0.4

Question 11

What type of isomer has the same four atoms or groups of atoms connected to a single carbon atom, but in two non-superimposable ways?

Accepted Answer

The answer of What type of isomer has the same...

Question 12

Hydrogen sulfide is considered the "rotten egg" gas, and has a structure much like water. Which of the following is its Lewis structure?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 13

What does the double line, which looks much like an equals sign, represent in Lewis structures?

Accepted Answer

A) A 2-electron single bond 
B) A 4-electron double bond 
C) A 2-electron double bond 
D) A 4-electron single bond 
A) A 2-electron single bond 
B) A 4-electron double bond 
C) A 2-electron double bond 
D) A 4-electron single bond

Question 14

Propane, C3H8, is best represented by which condensed Lewis structure?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

How does transplatin stop DNA replication?

Accepted Answer

A) Through its interaction with guanines in the DNA 
B) By binding to the minor groove of DNA 
C) By forcing a kink in the DNA that cannot be repaired 
D) It doesn't; transplatin is not a useful anti-cancer drug. 
A) Through its interaction with guanines in the DNA 
B) By binding to the minor groove of DNA 
C) By forcing a kink in the DNA that cannot be repaired 
D) It doesn't; transplatin is not a useful anti-cancer drug.

Question 16

What is the octet rule?

Accepted Answer

A) Elements form bonds to become isoelectronic with the noble gases. 
B) Elements form bonds to avoid becoming isoelectronic with the noble gases. 
C) Elements do not form bonds to become isoelectronic with the noble gases. 
D) Elements do not form bonds to avoid becoming isoelectronic with the noble gases. 
A) Elements form bonds to become isoelectronic with the noble gases. 
B) Elements form bonds to avoid becoming isoelectronic with the noble gases. 
C) Elements do not form bonds to become isoelectronic with the noble gases. 
D) Elements do not form bonds to avoid becoming isoelectronic with the noble gases.

Question 17

The simplest covalently bonded molecule is hydrogen. Which is the correct Lewis structure?

Accepted Answer

A) H2 
B) H.H 
C) H == H 
D) H - H 
A) H2 
B) H.H 
C) H == H 
D) H - H

Question 18

What is the best structural representation of formaldehyde, CH2O?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

How many resonance structures can be drawn for methane?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) None of the above 
A) 2 
B) 3 
C) 4 
D) None of the above

Question 20

What shape should the molecule SF4 have?

Accepted Answer

A) A "saw horse" shape 
B) Tetrahedron 
C) Trigonal planar 
D) Cubic 
A) A "saw horse" shape 
B) Tetrahedron 
C) Trigonal planar 
D) Cubic

Of the following solvents: ethanol, water, hexane, which is the most polar?

In terms of polarity, what best describes the molecule NH₃?

How many non-tetrahedral carbon atoms are in this molecule, nicotine?

If a radioimmunoassay of LSD is run on a material that has no LSD in it, what will the final results show?

As you move from the top to the bottom of the periodic table, what happens to the electronegativity of the elements?

What does molecular polarity affect?

All covalent bonds involve the loss and gain of electrons.

Why might an immunoassay test give a false positive for a blood sample?

What must interact for a covalent bond to form?

Many organic compounds have numerous C-H bonds. What is the average difference in electronegativity in one of them?

What type of isomer has the same four atoms or groups of atoms connected to a single carbon atom, but in two non-superimposable ways?

Hydrogen sulfide is considered the "rotten egg" gas, and has a structure much like water. Which of the following is its Lewis structure?

What does the double line, which looks much like an equals sign, represent in Lewis structures?

Propane, C₃H₈, is best represented by which condensed Lewis structure?

How does transplatin stop DNA replication?

What is the octet rule?

The simplest covalently bonded molecule is hydrogen. Which is the correct Lewis structure?

What is the best structural representation of formaldehyde, CH₂O?

How many resonance structures can be drawn for methane?

What shape should the molecule SF₄ have?

Understanding Our World With Chemistry

Matter: Properties, Changes and Measurements

Understanding Atoms

Bonding and Reactions

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Chemical Equilibrium

Introduction to Biochemistry

Filters

Exam 5: Chemistry of Bonding: Structure and Function of Drug Molecules

Of the following solvents: ethanol, water, hexane, which is the most polar?

In terms of polarity, what best describes the molecule NH3?

How many non-tetrahedral carbon atoms are in this molecule, nicotine?

If a radioimmunoassay of LSD is run on a material that has no LSD in it, what will the final results show?

As you move from the top to the bottom of the periodic table, what happens to the electronegativity of the elements?

What does molecular polarity affect?

All covalent bonds involve the loss and gain of electrons.

Why might an immunoassay test give a false positive for a blood sample?

What must interact for a covalent bond to form?

Many organic compounds have numerous C-H bonds. What is the average difference in electronegativity in one of them?

What type of isomer has the same four atoms or groups of atoms connected to a single carbon atom, but in two non-superimposable ways?

Hydrogen sulfide is considered the "rotten egg" gas, and has a structure much like water. Which of the following is its Lewis structure?

What does the double line, which looks much like an equals sign, represent in Lewis structures?

Propane, C3H8, is best represented by which condensed Lewis structure?

How does transplatin stop DNA replication?

What is the octet rule?

The simplest covalently bonded molecule is hydrogen. Which is the correct Lewis structure?

What is the best structural representation of formaldehyde, CH2O?

How many resonance structures can be drawn for methane?

What shape should the molecule SF4 have?

Understanding Our World With Chemistry

Matter: Properties, Changes and Measurements

Understanding Atoms

Bonding and Reactions

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Chemical Equilibrium

Introduction to Biochemistry

Filters

In terms of polarity, what best describes the molecule NH₃?

Propane, C₃H₈, is best represented by which condensed Lewis structure?

What is the best structural representation of formaldehyde, CH₂O?

What shape should the molecule SF₄ have?