Question 1

Which of the following has a trigonal pyramid molecular geometry?

Accepted Answer

A) Cl2O 
B) BeF2 
C) BH3 
D) NH3 
E) CF4 
A) Cl2O 
B) BeF2 
C) BH3 
D) NH3 
E) CF4 D

Question 2

Which of the following is the best Lewis diagram for CH3Br?

Accepted Answer

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

Question 3

What is the electron pair geometry shown in the following model?

Accepted Answer

A) Tetrahedral 
B) Angular (Bent) 
C) Linear 
D) Trigonal planar 
E) Trigonal pyramid 
A) Tetrahedral 
B) Angular (Bent) 
C) Linear 
D) Trigonal planar 
E) Trigonal pyramid A

Question 4

Which of the following compounds is a carboxylic acid?

Accepted Answer

A) C2H5OC2H5 
B) CH3CH2CH2OH 
C) HCOOH 
D) CH2Cl2 
E) None is a carboxylic acid. 
A) C2H5OC2H5 
B) CH3CH2CH2OH 
C) HCOOH 
D) CH2Cl2 
E) None is a carboxylic acid.

Question 5

Which of the following has a(n)bent (angular)molecular geometry?

Accepted Answer

A) OF2 
B) CO2 
C) H3O+ 
D) IO3- 
E) NH4+ 
A) OF2 
B) CO2 
C) H3O+ 
D) IO3- 
E) NH4+

Question 6

Which of the following is better classified as an organic compound than as an inorganic compound?

Accepted Answer

A) Ne 
B) HF 
C) H2O 
D) NH3 
E) CH4 
A) Ne 
B) HF 
C) H2O 
D) NH3 
E) CH4

Question 7

Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C2H6?

Accepted Answer

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

Question 8

Which of the following has a trigonal planar molecular geometry?

Accepted Answer

A) CH3OH 
B) CH2O 
C) NH3 
D) NO2- 
E) H2O 
A) CH3OH 
B) CH2O 
C) NH3 
D) NO2- 
E) H2O

Question 9

Consider the following general wedge-and-dash diagram:   Which of the following has this structure?

Accepted Answer

A) BF3 
B) CH2O 
C) AlCl3 
D) COCl2 
E) PH3 
A) BF3 
B) CH2O 
C) AlCl3 
D) COCl2 
E) PH3

Question 10

What is the molecular geometry surrounding the carbon atom in CH4?

Accepted Answer

A) Tetrahedral 
B) Angular (bent) 
C) Trigonal pyramid 
D) Linear 
E) Trigonal planar 
A) Tetrahedral 
B) Angular (bent) 
C) Trigonal pyramid 
D) Linear 
E) Trigonal planar

Question 11

Which of the following molecules is/are polar?
i.HF
ii.BH3
iii.CBr2F2
iv.PF3

Accepted Answer

A) ii only 
B) i and ii 
C) ii and iv 
D) i, iii, and iv 
E) i, ii, iii, and iv 
A) ii only 
B) i and ii 
C) ii and iv 
D) i, iii, and iv 
E) i, ii, iii, and iv

Question 12

What is the electron pair geometry surrounding the carbon atom in CF4?

Accepted Answer

A) Linear 
B) Trigonal planar 
C) Angular (Bent) 
D) Tetrahedral 
E) Trigonal pyramid 
A) Linear 
B) Trigonal planar 
C) Angular (Bent) 
D) Tetrahedral 
E) Trigonal pyramid

Question 13

Which of the following is the best Lewis diagram for CH2O?

Accepted Answer

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

Question 14

Which of the following molecules is/are nonpolar?
i.CH4
ii.CH3Cl
iii.CH2Cl2
iv.CHCl3
v.CCl4

Accepted Answer

A) i only 
B) iii only 
C) i and v 
D) ii and iv 
E) i, iii, and v 
A) i only 
B) iii only 
C) i and v 
D) ii and iv 
E) i, iii, and v

Question 15

Consider the following general wedge-and-dash diagram:   What is the molecular geometry around the central atom of this molecule?

Accepted Answer

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

Question 16

Consider the following general wedge-and-dash diagrams.       i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar?

Accepted Answer

A) i only 
B) ii only 
C) iii only 
D) ii and iii 
E) i, ii, and iii 
A) i only 
B) ii only 
C) iii only 
D) ii and iii 
E) i, ii, and iii

Question 17

What is the electron pair geometry surrounding the boron atom in BH3?

Accepted Answer

A) Trigonal planar 
B) Linear 
C) Angular (Bent) 
D) Trigonal pyramid 
E) Tetrahedral 
A) Trigonal planar 
B) Linear 
C) Angular (Bent) 
D) Trigonal pyramid 
E) Tetrahedral

Question 18

Which of the following is the best Lewis diagram for NO2-?

Accepted Answer

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

Question 19

Which of the following is the best Lewis diagram for HCO3-?

Accepted Answer

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

Question 20

Which of the following statements is/are correct?
i.A molecule is nonpolar if it contains only nonpolar bonds
ii.A polar molecule is one in which there is an asymmetrical distribution of charge.
iii.If the central atom in a molecule has no lone pairs and all the atoms bonded to it are identical,the molecule is nonpolar.

Accepted Answer

A) i only 
B) ii only 
C) iii only 
D) i and iii 
E) All statements are correct 
A) i only 
B) ii only 
C) iii only 
D) i and iii 
E) All statements are correct

Which of the following has a trigonal pyramid molecular geometry?

Which of the following is the best Lewis diagram for CH₃Br?

What is the electron pair geometry shown in the following model?

Which of the following compounds is a carboxylic acid?

Which of the following has a(n)bent (angular)molecular geometry?

Which of the following is better classified as an organic compound than as an inorganic compound?

Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C₂H₆?

Which of the following has a trigonal planar molecular geometry?

Consider the following general wedge-and-dash diagram: Which of the following has this structure?

What is the molecular geometry surrounding the carbon atom in CH₄?

Which of the following molecules is/are polar? i.HF ii.BH₃ iii.CBr₂F₂ iv.PF₃

What is the electron pair geometry surrounding the carbon atom in CF₄?

Which of the following is the best Lewis diagram for CH₂O?

Which of the following molecules is/are nonpolar? i.CH₄ ii.CH₃Cl iii.CH₂Cl₂ iv.CHCl₃ v.CCl₄

Consider the following general wedge-and-dash diagram: What is the molecular geometry around the central atom of this molecule?

Consider the following general wedge-and-dash diagrams. i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar?

What is the electron pair geometry surrounding the boron atom in BH₃?

Which of the following is the best Lewis diagram for NO₂^-?

Which of the following is the best Lewis diagram for HCO₃^-?

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

The Ideal Gas Law and Its Applications

Gases, Liquids, and Solids

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Oxidationreduction Electron Transferreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 13: Structure and Shape

Which of the following has a trigonal pyramid molecular geometry?

Which of the following is the best Lewis diagram for CH3Br?

What is the electron pair geometry shown in the following model?

Which of the following compounds is a carboxylic acid?

Which of the following has a(n)bent (angular)molecular geometry?

Which of the following is better classified as an organic compound than as an inorganic compound?

Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C2H6?

Which of the following has a trigonal planar molecular geometry?

Consider the following general wedge-and-dash diagram: Which of the following has this structure?

What is the molecular geometry surrounding the carbon atom in CH4?

Which of the following molecules is/are polar? i.HF ii.BH3 iii.CBr2F2 iv.PF3

What is the electron pair geometry surrounding the carbon atom in CF4?

Which of the following is the best Lewis diagram for CH2O?

Which of the following molecules is/are nonpolar? i.CH4 ii.CH3Cl iii.CH2Cl2 iv.CHCl3 v.CCl4

Consider the following general wedge-and-dash diagram: What is the molecular geometry around the central atom of this molecule?

Consider the following general wedge-and-dash diagrams. i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar?

What is the electron pair geometry surrounding the boron atom in BH3?

Which of the following is the best Lewis diagram for NO2-?

Which of the following is the best Lewis diagram for HCO3-?

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

The Ideal Gas Law and Its Applications

Gases, Liquids, and Solids

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Oxidationreduction Electron Transferreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Which of the following is the best Lewis diagram for CH₃Br?

Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C₂H₆?

What is the molecular geometry surrounding the carbon atom in CH₄?

Which of the following molecules is/are polar? i.HF ii.BH₃ iii.CBr₂F₂ iv.PF₃

What is the electron pair geometry surrounding the carbon atom in CF₄?

Which of the following is the best Lewis diagram for CH₂O?

Which of the following molecules is/are nonpolar? i.CH₄ ii.CH₃Cl iii.CH₂Cl₂ iv.CHCl₃ v.CCl₄

What is the electron pair geometry surrounding the boron atom in BH₃?

Which of the following is the best Lewis diagram for NO₂^-?

Which of the following is the best Lewis diagram for HCO₃^-?