Question 1

Which of these contain(s)polar bonds but is\are nonpolar molecule(s)?
I. NCl3
II. H2
III. CO2
IV. BF3

Accepted Answer

A) I only 
B) I and III 
C) III and IV 
D) III only 
E) I, III, and IV 
A) I only 
B) I and III 
C) III and IV 
D) III only 
E) I, III, and IV

Question 2

Which of these substances is\are ionic compound(s)?
I. NCl3
II. MgF2
III. AlBr3
IV. CH4

Accepted Answer

A) I and II 
B) II and III 
C) II and IV 
D) II, III, and IV 
E) II only 
A) I and II 
B) II and III 
C) II and IV 
D) II, III, and IV 
E) II only

Question 3

How many total valence electrons are there in the Lewis structure of NO3 − 1?

Accepted Answer

A) 32 
B) 30 
C) 20 
D) 22 
E) None of these. 
A) 32 
B) 30 
C) 20 
D) 22 
E) None of these.

Question 4

Which of these is the correct Lewis dot structure for chlorine?

Accepted Answer

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

Question 5

Which of the following results in bent molecular geometry?

Accepted Answer

A) 4 bonding groups and no lone pair on the central atom 
B) 2 bonding groups and 1 lone pair on the central atom 
C) 2 bonding groups and 2 lone pairs on the central atom 
D) Both B and C 
E) Both A and C 
A) 4 bonding groups and no lone pair on the central atom 
B) 2 bonding groups and 1 lone pair on the central atom 
C) 2 bonding groups and 2 lone pairs on the central atom 
D) Both B and C 
E) Both A and C

Question 6

Which of these is the most likely identity of element A in the Lewis dot structure?

Accepted Answer

A) Ca 
B) Li 
C) Al 
D) Cs 
E) P 
A) Ca 
B) Li 
C) Al 
D) Cs 
E) P

Question 7

Which of these molecules will have a trigonal planar 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

Question 8

How many bonding pairs of electrons are 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 9

Which of these molecules contains 1 double bond and 1 single bond?

Accepted Answer

A) PCl3 
B) NH3 
C) SO2 
D) H2O 
E) CO2 
A) PCl3 
B) NH3 
C) SO2 
D) H2O 
E) CO2

Question 10

How many lone pairs of electrons are 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 11

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 12

Which of these molecules contains two double bonds?

Accepted Answer

A) PCl3 
B) N2 
C) SO2 
D) H2O 
E) CO2 
A) PCl3 
B) N2 
C) SO2 
D) H2O 
E) CO2

Question 13

Which of these is the correct Lewis dot structure for sulfur trioxide?

Accepted Answer

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

Question 14

A nonpolar bond would most likely result when:

Accepted Answer

A) a metal bonds to a nonmetal. 
B) a nonmetal bonds to a metal. 
C) two identical nonmetal atoms bond. 
D) an atom bonds to hydrogen. 
A) a metal bonds to a nonmetal. 
B) a nonmetal bonds to a metal. 
C) two identical nonmetal atoms bond. 
D) an atom bonds to hydrogen.

Question 15

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 16

Of the bonds below, the most polar bond would be:

Accepted Answer

A) C − C 
B) C − N 
C) C − O 
D) C − F 
A) C − C 
B) C − N 
C) C − O 
D) C − F

Question 17

Which of these is the correct molecular geometry of SO2?

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 18

Which of these elements has the lowest electronegativity?

Accepted Answer

A) Ca 
B) N 
C) Se 
D) P 
E) O 
A) Ca 
B) N 
C) Se 
D) P 
E) O

Question 19

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

Accepted Answer

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

Question 20

Ionic bonds are formed when electrons are ____.

Accepted Answer

A) transferred 
B) split 
C) shared 
D) destroyed 
E) heated 
A) transferred 
B) split 
C) shared 
D) destroyed 
E) heated

Which of these contain(s)polar bonds but is\are nonpolar molecule(s)? I. NCl₃ II. H₂ III. CO₂ IV. BF₃

Which of these substances is\are ionic compound(s)? I. NCl₃ II. MgF₂ III. AlBr₃ IV. CH₄

How many total valence electrons are there in the Lewis structure of NO₃^{− 1}?

Which of these is the correct Lewis dot structure for chlorine?

Which of the following results in bent molecular geometry?

Which of these is the most likely identity of element A in the Lewis dot structure?

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

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

Which of these molecules contains 1 double bond and 1 single bond?

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

Which of these is the correct formula for strontium iodide?

Which of these molecules contains two double bonds?

Which of these is the correct Lewis dot structure for sulfur trioxide?

A nonpolar bond would most likely result when:

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

Of the bonds below, the most polar bond would be:

Which of these is the correct molecular geometry of SO₂?

Which of these elements has the lowest electronegativity?

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

Ionic bonds are formed when electrons are ____.

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Exam 5: Chemical Bonding

Which of these contain(s)polar bonds but is\are nonpolar molecule(s)? I. NCl3 II. H2 III. CO2 IV. BF3

Which of these substances is\are ionic compound(s)? I. NCl3 II. MgF2 III. AlBr3 IV. CH4

How many total valence electrons are there in the Lewis structure of NO3 − 1?

Which of these is the correct Lewis dot structure for chlorine?

Which of the following results in bent molecular geometry?

Which of these is the most likely identity of element A in the Lewis dot structure?

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

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

Which of these molecules contains 1 double bond and 1 single bond?

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

Which of these is the correct formula for strontium iodide?

Which of these molecules contains two double bonds?

Which of these is the correct Lewis dot structure for sulfur trioxide?

A nonpolar bond would most likely result when:

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

Of the bonds below, the most polar bond would be:

Which of these is the correct molecular geometry of SO2?

Which of these elements has the lowest electronegativity?

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

Ionic bonds are formed when electrons are ____.

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

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters

Which of these contain(s)polar bonds but is\are nonpolar molecule(s)? I. NCl₃ II. H₂ III. CO₂ IV. BF₃

Which of these substances is\are ionic compound(s)? I. NCl₃ II. MgF₂ III. AlBr₃ IV. CH₄

How many total valence electrons are there in the Lewis structure of NO₃^{− 1}?

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

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

Which of these is the correct molecular geometry of SO₂?