Question 1

What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H2NC(O) NNC(O) NH2?

Accepted Answer

A)  sp3,sp,sp2 
B)  sp2,sp,sp3 
C)  sp2,sp,sp2 
D)  sp,sp,sp2 
E)  sp2,sp2,sp2 F) A) and E)
G) A) and B)

Question 2

All the following are polar except

Accepted Answer

A)  S32-
B)  NH2-
C)  I3-
D)  O3- 
E)  I3+F) A) and B)
G) A) and C)

Question 3

The hybrid orbitals used by the underlined atoms in CH2CHCHO,from left to right,respectively,are

Accepted Answer

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

Question 4

Which of the following is polar?

Accepted Answer

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

Question 5

What is the bond order in the OH radical?

Accepted Answer

The answer of What is the bond order in the...

Question 6

What is the shape of IF4+?

Accepted Answer

A)  Tetrahedral
B)  Seesaw
C)  Trigonal bipyramidal
D)  Square planar
E)  T-shapedF) A) and E)
G) C) and D)

Question 7

All the following are polar except

Accepted Answer

A)  ClF3.
B)  COCl2.
C)  BO33-
D)  BrO3- 
E)  O3. F) None of the above
G) A) and E)

Question 8

Which of the following is a p-type semiconductor?

Accepted Answer

A)  Selenium doped with indium
B)  Silicon doped with arsenic
C)  GaAs with arsenic in excess of gallium
D)  Germanium doped with arsenic
E)  Silicon doped with phosphorusF) None of the above
G) A) and C)

Question 9

The molecule cis-dichloroethene is nonpolar.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following species has the shortest bond length?

Accepted Answer

A)  NO2-
B)  NO2+ 
C)  NO-
D)  NO
E)  NO+ F) C) and D)
G) A) and D)

Question 11

The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5S1U1P1$\circ$S1S1P0.

Accepted Answer

The answer of The OSO bond angle in the sulfite...

Question 12

An AX3E2 molecule has a trigonal planar shape.

Accepted Answer

A) True 
 B)False

Question 13

The hybrid orbitals used by the underlined atoms in CH3CH2OCH2CH3,from left to right,respectively,are

Accepted Answer

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

Question 14

For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

Accepted Answer

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

Question 15

Draw the Lewis structure of formamide,NH2CHO,and give the number of lone pairs of electrons,and the number of  $\sigma$- and $\pi$-bonds.

Accepted Answer

3 lone pai...

Question 16

What is the shape of the molecule AX4E2?

Accepted Answer

A)  Octahedral
B)  Tetrahedral
C)  Seesaw
D)  Square planar
E)  Square pyramidalF) All of the above
G) C) and E)

Question 17

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 18

The molecules OF2 and O3 both have bent shapes.What is the hybridization of the central atom in OF2 and O3,respectively?

Accepted Answer

A)  sp3 and sp2
B)  both sp3
C)  both sp2
D)  sp3 and sp
E)  both spF) B) and E)
G) C) and E)

Question 19

Which of the following is polar?

Accepted Answer

A)  XeF4 
B)  PCl5 
C)  ICl4- 
D)  SF6 
E)  IF5 F) A) and C)
G) B) and D)

Question 20

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+ F) D) and E)
G) A) and D)

Exam 4: Molecular Shape and Structure

All the following are polar except

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Which of the following species has the shortest bond length?

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

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Which of the following is a p-type semiconductor?

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The molecule cis-dichloroethene is nonpolar.

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Which of the following is polar?

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The hybrid orbitals used by the underlined atoms in CH3CH2OCH2CH3,from left to right,respectively,are

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The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5 ∘\circ∘ .

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What is the bond order in the OH radical?

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All the following are polar except

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For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

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Draw the Lewis structure of formamide,NH2CHO,and give the number of lone pairs of electrons,and the number of σ\sigmaσ - and π\piπ -bonds.

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What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H2NC(O) NNC(O) NH2?

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The hybrid orbitals used by the underlined atoms in CH2CHCHO,from left to right,respectively,are

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An AX3E2 molecule has a trigonal planar shape.

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The molecules OF2 and O3 both have bent shapes.What is the hybridization of the central atom in OF2 and O3,respectively?

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Which of the following is polar?

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What is the shape of IF4+?

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

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What is the shape of the molecule AX4E2?

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

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The hybrid orbitals used by the underlined atoms in CH₃CH₂OCH₂CH₃,from left to right,respectively,are

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The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5^$\circ$.

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For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH^-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

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Draw the Lewis structure of formamide,NH₂CHO,and give the number of lone pairs of electrons,and the number of $\sigma$ - and $\pi$ -bonds.

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3 lone pai...
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What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H₂NC(O) NNC(O) NH₂?

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The hybrid orbitals used by the underlined atoms in CH₂CHCHO,from left to right,respectively,are

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An AX₃E₂ molecule has a trigonal planar shape.

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The molecules OF₂ and O₃ both have bent shapes.What is the hybridization of the central atom in OF₂ and O₃,respectively?

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What is the shape of IF₄⁺?

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molecular orbital,4;...
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What is the shape of the molecule AX₄E₂?

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