Question 1

Predict the geometry and polarity of the CS2 molecule.

Accepted Answer

A)  linear, polar
B)  linear, nonpolar
C)  tetrahedral, nonpolar
D)  bent, nonpolar
E)  bent, polarF) All of the above
G) A) and C)

Question 2

N,N-diethyl-m-tolumide (DEET) is the active ingredient in many mosquito repellents. What is the hybridization state of the nitrogen atom in the structure of DEET shown below? 2 C) sp3 D) sp3d E) sp3d2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) None of the above
G) A) and B)

Question 3

The number of pi bonds in the oxalate ion (C2O42-) is

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  4.
E)  5.F) B) and C)
G) B) and E)

Question 4

Predict the geometry around the central atom in SO42-.

Accepted Answer

A)  trigonal planar
B)  trigonal pyramidal
C)  tetrahedral
D)  trigonal bipyramidal
E)  octahedralF) A) and B)
G) C) and D)

Question 5

The number of pi bonds in the molecule below is

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  5.
E)  9.F) B) and E)
G) B) and C)

Question 6

Consider the species N2-, N2, and N2+. Which of these species will be paramagnetic?

Accepted Answer

A)  N2 and N2-
B)  N2+ and N2
C)  N2+ and N2-
D)  only N2-
E)  none are paramagneticF) A) and B)
G) D) and E)

Question 7

The hybridization of the central nitrogen atom in the molecule N2O is

Accepted Answer

A)  sp.
B)  sp2.
C)  sp3.
D)  sp3d.
E)  sp3d2.F) A) and D)
G) D) and E)

Question 8

Using periodic trends, arrange the following molecules in order of increasing dipole moment: NH3, PH3, AsH3.

Accepted Answer

Question 9

N,N-diethyl-m-tolumide (DEET) is the active ingredient in many mosquito repellents. What is the hybridization state of carbon indicated by the arrow in the structure of DEET shown below? 2 C) sp3 D) sp3d E) sp3d2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) A) and B)
G) A) and C)

Question 10

According to the VSEPR theory, the actual F -As -F bond angles in the AsF4- ion are predicted to be

Accepted Answer

A)  109.5°.
B)  90° and 120°.
C)  180°.
D)  
E)  < 90° and < 120°.F) A) and B)
G) B) and C)

Question 11

The hybridization of B in the BF3 molecule is sp3.

Accepted Answer

A) True 
 B)False

Question 12

What is the hybridization of As in the AsF4- ion?

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) None of the above
G) A) and D)

Question 13

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

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) D) and E)
G) A) and E)

Question 14

Predict the molecular geometry and polarity of the SO2 molecule.

Accepted Answer

A)  linear, polar
B)  linear, nonpolar
C)  bent, polar
D)  bent, nonpolar
E)  None of the above.F) None of the above
G) All of the above

Question 15

Which one of the following molecules has a non-zero dipole moment?

Accepted Answer

A)  BeCl2
B)  Br2
C)  BF3
D)  IBr
E)  CO2F) A) and C)
G) A) and E)

Question 16

The F - S - F bond angles in SF6 are

Accepted Answer

A)  90° and 180°.
B)  109.5°.
C)  120°.
D)  180°.
E)  90° and 120°.F) A) and B)
G) A) and D)

Question 17

According to VSEPR theory, which one of the following molecules has tetrahedral geometry?

Accepted Answer

A)  NH3
B)  CCl4
C)  CO2
D)  SF4
E)  PCl5F) C) and D)
G) A) and B)

Question 18

Which of the following molecules should be polar?
a. CH3OH
b. H2O
c. CH3OCH3

Accepted Answer

All of the...

Question 19

Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containing the nuclei of the bonding atoms.

Accepted Answer

A) True 
 B)False

Question 20

What is the hybridization of the As atom in the AsF5 molecule?

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) D) and E)
G) B) and D)

Exam 10: Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

The number of pi bonds in the molecule below is

Correct AnswerverifiedShow Answer

Predict the geometry around the central atom in SO42-.

Correct AnswerverifiedShow Answer

Using periodic trends, arrange the following molecules in order of increasing dipole moment: NH3, PH3, AsH3.

Correct AnswerverifiedShow Answer

Predict the molecular geometry and polarity of the SO2 molecule.

Correct AnswerverifiedShow Answer

Which one of the following molecules has a non-zero dipole moment?

Correct AnswerverifiedShow Answer

The hybridization of B in the BF3 molecule is sp3.

Correct AnswerverifiedShow Answer

Consider the species N2-, N2, and N2+. Which of these species will be paramagnetic?

Correct AnswerverifiedShow Answer

N,N-diethyl-m-tolumide (DEET) is the active ingredient in many mosquito repellents. What is the hybridization state of the nitrogen atom in the structure of DEET shown below?

Correct AnswerverifiedShow Answer

According to VSEPR theory, which one of the following molecules has tetrahedral geometry?

Correct AnswerverifiedShow Answer

According to the VSEPR theory, the actual F -As -F bond angles in the AsF4- ion are predicted to be

Correct AnswerverifiedShow Answer

N,N-diethyl-m-tolumide (DEET) is the active ingredient in many mosquito repellents. What is the hybridization state of carbon indicated by the arrow in the structure of DEET shown below?

Correct AnswerverifiedShow Answer

Predict the geometry and polarity of the CS2 molecule.

Correct AnswerverifiedShow Answer

What is the hybridization of As in the AsF4- ion?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The F - S - F bond angles in SF6 are

Correct AnswerverifiedShow Answer

The hybridization of the central nitrogen atom in the molecule N2O is

Correct AnswerverifiedShow Answer

Which of the following molecules should be polar? a. CH3OH b. H2O c. CH3OCH3

Correct AnswerverifiedAll of the...View AnswerShow Answer

The number of pi bonds in the oxalate ion (C2O42-) is

Correct AnswerverifiedShow Answer

What is the hybridization of the As atom in the AsF5 molecule?

Correct AnswerverifiedShow Answer

Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containing the nuclei of the bonding atoms.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Predict the geometry around the central atom in SO₄^2-.

Correct Answer
verified

Using periodic trends, arrange the following molecules in order of increasing dipole moment: NH₃, PH₃, AsH₃.

Correct Answer
verified

Predict the molecular geometry and polarity of the SO₂ molecule.

Correct Answer
verified

Correct Answer
verified

The hybridization of B in the BF₃ molecule is sp³.

Correct Answer
verified

Consider the species N₂^-, N₂, and N₂⁺. Which of these species will be paramagnetic?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

According to the VSEPR theory, the actual F -As -F bond angles in the AsF₄^- ion are predicted to be

Correct Answer
verified

Correct Answer
verified

Predict the geometry and polarity of the CS₂ molecule.

Correct Answer
verified

What is the hybridization of As in the AsF₄^- ion?

Correct Answer
verified

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

Correct Answer
verified

The F - S - F bond angles in SF₆ are

Correct Answer
verified

The hybridization of the central nitrogen atom in the molecule N₂O is

Correct Answer
verified

Which of the following molecules should be polar? a. CH₃OH b. H₂O c. CH₃OCH₃

Correct Answer
verified
All of the...
View Answer

The number of pi bonds in the oxalate ion (C₂O₄^2-) is

Correct Answer
verified

What is the hybridization of the As atom in the AsF₅ molecule?

Correct Answer
verified

Correct Answer
verified