Question 1

For peroxyacetylnitrate, CH3C(O)O-ONO2, What hybrid orbitals are used by the oxygen atom in bold?

Accepted Answer

A)  dsp 
B)  sp 
C)  sp2 
D)  sp3 
A)  dsp 
B)  sp 
C)  sp2 
D)  sp3

Question 2

An AX3E2 molecule has a trigonal planar shape.

Accepted Answer

A) True 
 B)False

Question 3

For the ground-state ion Pb2+, what type of orbital do the electrons with highest energy reside in?

Accepted Answer

A)  6p 
B)  5p 
C)  4f 
D)  6s 
E)  5d 
A)  6p 
B)  5p 
C)  4f 
D)  6s 
E)  5d

Question 4

How many electrons are in the expanded valence in I3-?

Accepted Answer

A)  12 
B)  6 
C)  10 
D)  14 
E)  8 
A)  12 
B)  6 
C)  10 
D)  14 
E)  8

Question 5

How many electrons are in the expanded valence in XeOF2?

Accepted Answer

A)  14 
B)  12 
C)  8 
D)  10 
E)  6 
A)  14 
B)  12 
C)  8 
D)  10 
E)  6

Question 6

All the following have a linear shape except

Accepted Answer

A)  BeCl2. 
B)  O3. 
C)  I3- 
D)  XeF2. 
E)  CS2. 
A)  BeCl2. 
B)  O3. 
C)  I3- 
D)  XeF2. 
E)  CS2.

Question 7

How many $ \sigma $- and$\pi $-bonds are present in diazomethane, CH2NN?

Accepted Answer

4 @#LAT-DLM&-bonds a

Question 8

All the following have a linear shape except

Accepted Answer

A)  IF2-. 
B)  CS2. 
C)  XeF2. 
D)  I3-. 
E)  I3+. 
A)  IF2-. 
B)  CS2. 
C)  XeF2. 
D)  I3-. 
E)  I3+.

Question 9

What is the shape of COCl2?

Accepted Answer

A)  T-shaped 
B)  Trigonal planar 
C)  Trigonal pyramidal 
D)  Tetrahedral 
E)  Seesaw 
A)  T-shaped 
B)  Trigonal planar 
C)  Trigonal pyramidal 
D)  Tetrahedral 
E)  Seesaw

Question 10

For A2,the LCAO-MO,$\Psi $=cA$\Psi $A + cB$\Psi $B,has cA = cB.

Accepted Answer

A) True 
 B)False

Question 11

Which of the compounds below has bonds with the most covalent character?

Accepted Answer

A)  CaO 
B)  Li2O 
C)  MgO 
D)  MgS 
E)  CaS 
A)  CaO 
B)  Li2O 
C)  MgO 
D)  MgS 
E)  CaS

Question 12

The structure of Tylenol is given below:   Estimate the C-N-H bond angle.

Accepted Answer

A)  ~ 109o 
B)  ~ 120o 
C)  > 109o 
D)  > 120o 
E)  ~ 90o 
A)  ~ 109o 
B)  ~ 120o 
C)  > 109o 
D)  > 120o 
E)  ~ 90o

Question 13

The bond order of O22+ is

Accepted Answer

A)  1. 
B)  2. 
C)  3. 
D)  2.5. 
E)  1.5. 
A)  1. 
B)  2. 
C)  3. 
D)  2.5. 
E)  1.5.

Question 14

Which of the following only has bond angles of 90$\circ$ and 180$\circ$?

Accepted Answer

A)  IF5  
B)  BrF3  
C)  BCl3  
D)  NO3- 
E)  ICl4+ 
A)  IF5  
B)  BrF3  
C)  BCl3  
D)  NO3- 
E)  ICl4+

Question 15

How many peaks would you predict for the photoelectron spectrum of water using 1)the molecular orbital model and 2) the VSEPR model?

Accepted Answer

molecular orbital,
4

Question 16

What is the shape of ICl4-?

Accepted Answer

A)  T-shaped 
B)  Trigonal bipyramidal 
C)  Seesaw 
D)  Tetrahedral 
E)  Square planar 
A)  T-shaped 
B)  Trigonal bipyramidal 
C)  Seesaw 
D)  Tetrahedral 
E)  Square planar

Question 17

Which of the following is polar?

Accepted Answer

A)  NON 
B)  XeF2  
C)  XeO2  
D)  ICl4- 
E)  I3- 
A)  NON 
B)  XeF2  
C)  XeO2  
D)  ICl4- 
E)  I3-

Question 18

Which of the following has bond angles slightly less than 120$\circ$?

Accepted Answer

A)  SO3  
B)  SF2  
C)  I3- 
D)  NO3- 
E)  O3  
A)  SO3  
B)  SF2  
C)  I3- 
D)  NO3- 
E)  O3

Question 19

Which of the following compounds contains the weakest bonds to hydrogen?

Accepted Answer

A)  CH4  
B)  H2O 
C)  SiH4  
D)  HF 
E)  H2S 
A)  CH4  
B)  H2O 
C)  SiH4  
D)  HF 
E)  H2S

Question 20

What is the shape of AsF3?

Accepted Answer

A)  T-shaped 
B)  Trigonal planar 
C)  Trigonal pyramidal 
D)  Tetrahedral 
E)  Seesaw 
A)  T-shaped 
B)  Trigonal planar 
C)  Trigonal pyramidal 
D)  Tetrahedral 
E)  Seesaw

For peroxyacetylnitrate, CH₃C(O)O-ONO₂, What hybrid orbitals are used by the oxygen atom in bold?

An AX₃E₂ molecule has a trigonal planar shape.

For the ground-state ion Pb²⁺, what type of orbital do the electrons with highest energy reside in?

How many electrons are in the expanded valence in I₃^-?

How many electrons are in the expanded valence in XeOF₂?

All the following have a linear shape except

How many $\sigma$ - and $\pi$ -bonds are present in diazomethane, CH₂NN?

All the following have a linear shape except

What is the shape of COCl₂?

For A₂,the LCAO-MO, $\Psi$ =c_A $\Psi$ _A + c_B $\Psi$ _B,has c_A = c_B.

Which of the compounds below has bonds with the most covalent character?

The structure of Tylenol is given below: Estimate the C-N-H bond angle.

The bond order of O₂²⁺ is

Which of the following only has bond angles of 90^$\circ$ and 180^$\circ$?

How many peaks would you predict for the photoelectron spectrum of water using 1)the molecular orbital model and 2) the VSEPR model?

What is the shape of ICl₄^-?

Which of the following is polar?

Which of the following has bond angles slightly less than 120^$\circ$?

Which of the following compounds contains the weakest bonds to hydrogen?

What is the shape of AsF₃?

Atoms

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

The D-Block Elements

Nuclear Chemistry

Organic Chemistry

Filters

Exam 2: Molecules

For peroxyacetylnitrate, CH3C(O)O-ONO2, What hybrid orbitals are used by the oxygen atom in bold?

An AX3E2 molecule has a trigonal planar shape.

For the ground-state ion Pb2+, what type of orbital do the electrons with highest energy reside in?

How many electrons are in the expanded valence in I3-?

How many electrons are in the expanded valence in XeOF2?

All the following have a linear shape except

How many σ \sigma σ - and π\pi π -bonds are present in diazomethane, CH2NN?

All the following have a linear shape except

What is the shape of COCl2?

For A2,the LCAO-MO, Ψ\Psi Ψ =cA Ψ\Psi Ψ A + cB Ψ\Psi Ψ B,has cA = cB.

Which of the compounds below has bonds with the most covalent character?

The structure of Tylenol is given below: Estimate the C-N-H bond angle.

The bond order of O22+ is

Which of the following only has bond angles of 90 ∘\circ∘ and 180 ∘\circ∘ ?

How many peaks would you predict for the photoelectron spectrum of water using 1)the molecular orbital model and 2) the VSEPR model?

What is the shape of ICl4-?

Which of the following is polar?

Which of the following has bond angles slightly less than 120 ∘\circ∘ ?

Which of the following compounds contains the weakest bonds to hydrogen?

What is the shape of AsF3?

Atoms

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

The D-Block Elements

Nuclear Chemistry

Organic Chemistry

Filters

For peroxyacetylnitrate, CH₃C(O)O-ONO₂, What hybrid orbitals are used by the oxygen atom in bold?

An AX₃E₂ molecule has a trigonal planar shape.

For the ground-state ion Pb²⁺, what type of orbital do the electrons with highest energy reside in?

How many electrons are in the expanded valence in I₃^-?

How many electrons are in the expanded valence in XeOF₂?

How many $\sigma$ - and $\pi$ -bonds are present in diazomethane, CH₂NN?

What is the shape of COCl₂?

For A₂,the LCAO-MO, $\Psi$ =c_A $\Psi$ _A + c_B $\Psi$ _B,has c_A = c_B.

The bond order of O₂²⁺ is

Which of the following only has bond angles of 90^$\circ$ and 180^$\circ$?

What is the shape of ICl₄^-?

Which of the following has bond angles slightly less than 120^$\circ$?

What is the shape of AsF₃?