Question 1

Which is the most reasonable prediction for the H-C-H bond angle in CH4?

Accepted Answer

A) 90° 
B) 109.5° 
C) 120° 
D) 107° 
E) 105° 
A) 90° 
B) 109.5° 
C) 120° 
D) 107° 
E) 105°

Question 2

Indicate the type of hybrid orbitals used by the central atom in PCl3.

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2 
A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2

Question 3

According to the VSEPR model,which molecule is predicted to have a molecular geometry that is trigonal bipyramidal?

Accepted Answer

A) SF4 
B) XeF4 
C) NF3 
D) SF6 
E) PF5 
A) SF4 
B) XeF4 
C) NF3 
D) SF6 
E) PF5

Question 4

Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl5?

Accepted Answer

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

Question 5

Which figure best illustrates the hybrid orbitals on phosphorous in PH3?

Accepted Answer

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

Question 6

For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy?

Accepted Answer

A)    
B)    
C)    
D)    
E) All of these orbitals have the same energy. 
A)    
B)    
C)    
D)    
E) All of these orbitals have the same energy.

Question 7

___________ is the electron-domain geometry and _________ is the molecular geometry for ammonia.

Accepted Answer

Tetrahedra

Question 8

Which one of the following molecules is nonpolar?

Accepted Answer

A) NH3 
B) OF2 
C) CH3Cl 
D) H2O 
E) BeCl2 
A) NH3 
B) OF2 
C) CH3Cl 
D) H2O 
E) BeCl2

Question 9

What name is given to the shape of a molecule with no lone pairs of electrons on the central atom and 6 electron domains on the central atom?

Accepted Answer

The answer of What name is given to the shape...

Question 10

Which of the following is required for the determination of the VSEPR model and the molecular shape?

Accepted Answer

A) Atomic mass 
B) Number of protons 
C) Oxidation number 
D) Lewis structure 
E) None of the answers is correct. 
A) Atomic mass 
B) Number of protons 
C) Oxidation number 
D) Lewis structure 
E) None of the answers is correct.

Question 11

According to the VSEPR model,is the molecule PF5 polar or nonpolar?

Accepted Answer

Question 12

To make an sp3 hybrid orbital,one s atomic orbital is mixed with three p atomic orbitals.

Accepted Answer

A) True 
 B)False

Question 13

What is the number of lone electron pairs on the central atom of a molecule having a trigonal pyramidal molecular geometry,such as NH3?

Accepted Answer

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

Question 14

Which one of the following molecules is nonpolar?

Accepted Answer

A) CO2 
B) PF3 
C) KCl 
D) IBr3 
E) CHCl3 
A) CO2 
B) PF3 
C) KCl 
D) IBr3 
E) CHCl3

Question 15

According to the VSEPR model,the predicted molecular geometry of ammonia,NH3,is

Accepted Answer

A) linear. 
B) trigonal planar. 
C) bent. 
D) tetrahedral. 
E) trigonal pyramidal. 
A) linear. 
B) trigonal planar. 
C) bent. 
D) tetrahedral. 
E) trigonal pyramidal.

Question 16

What is the predicted molecular geometry of the H2O molecule according to the VSEPR model?

Accepted Answer

A) tetrahedral 
B) trigonal pyramidal 
C) bent 
D) square planar 
E) seesaw 
A) tetrahedral 
B) trigonal pyramidal 
C) bent 
D) square planar 
E) seesaw

Question 17

Consider the species F2+,F2,and F2-.Which of these species will be paramagnetic?

Accepted Answer

A) F2+,F2,and F2- 
B) F2+ and F2 
C) F2 and F2- 
D) F2+ and F2- 
E) None is paramagnetic. 
A) F2+,F2,and F2- 
B) F2+ and F2 
C) F2 and F2- 
D) F2+ and F2- 
E) None is paramagnetic.

Exam 9: Chemical Bonding Ii Molecular Geometry and Bonding Theories

Which is the most reasonable prediction for the H-C-H bond angle in CH4?

Indicate the type of hybrid orbitals used by the central atom in PCl3.

According to the VSEPR model,which molecule is predicted to have a molecular geometry that is trigonal bipyramidal?

Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl5?

Which figure best illustrates the hybrid orbitals on phosphorous in PH3?

For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy?

___________ is the electron-domain geometry and _________ is the molecular geometry for ammonia.

Which one of the following molecules is nonpolar?

What name is given to the shape of a molecule with no lone pairs of electrons on the central atom and 6 electron domains on the central atom?

Which of the following is required for the determination of the VSEPR model and the molecular shape?

According to the VSEPR model,is the molecule PF5 polar or nonpolar?

To make an sp3 hybrid orbital,one s atomic orbital is mixed with three p atomic orbitals.

What is the number of lone electron pairs on the central atom of a molecule having a trigonal pyramidal molecular geometry,such as NH3?

Which one of the following molecules is nonpolar?

According to the VSEPR model,the predicted molecular geometry of ammonia,NH3,is

What is the predicted molecular geometry of the H2O molecule according to the VSEPR model?

Consider the species F2+,F2,and F2-.Which of these species will be paramagnetic?

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Nonmetallic Elements and Their Compounds

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Filters

Which is the most reasonable prediction for the H-C-H bond angle in CH₄?

Indicate the type of hybrid orbitals used by the central atom in PCl₃.

Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl₅?

Which figure best illustrates the hybrid orbitals on phosphorous in PH₃?

___ is the electron-domain geometry and _ is the molecular geometry for ammonia.

According to the VSEPR model,is the molecule PF₅ polar or nonpolar?

To make an sp³ hybrid orbital,one s atomic orbital is mixed with three p atomic orbitals.

What is the number of lone electron pairs on the central atom of a molecule having a trigonal pyramidal molecular geometry,such as NH₃?

According to the VSEPR model,the predicted molecular geometry of ammonia,NH₃,is

What is the predicted molecular geometry of the H₂O molecule according to the VSEPR model?

Consider the species F₂⁺,F₂,and F₂^-.Which of these species will be paramagnetic?