Question 1

A sp2 hybridized central atom has what angles between its hybrid orbitals

Accepted Answer

A)   145 ∘\circ∘ 
B)   120 ∘\circ∘ 
C)   109.5 ∘\circ∘ 
D)   90 ∘\circ∘ 
E)    ∘\circ∘  F) A) and D)
G) A) and E)

Question 2

What is the bond order of CO+

Accepted Answer

A)   1
B)   1.5
C)   2
D)   2.5
E)   3F) A) and B)
G) B) and E)

Question 3

Give the number of lone pairs around the central atom and the molecular geometry of SCl2.

Accepted Answer

A)   0 lone pairs, linear
B)   1 lone pair, bent
C)   2 lone pairs, bent
D)   3 lone pairs, bent
E)   3 lone pairs, linearF) B) and D)
G) A) and D)

Question 4

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) A) and B)
G) A) and C)

Question 5

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

Accepted Answer

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

Question 6

In VSEPR theory the molecular geometry of SF4 (sulfur tetrafluoride) is distorted tetrahedron (seesaw).

Accepted Answer

A) True 
 B)False

Question 7

A central atom with 5 electron pairs (single bonds and/or lone pairs of electrons)  could have which of the following molecular geometries
I. Trigonal bipyramidal
II. Seesaw
III. T-shaped
IV. Linear

Accepted Answer

A)   I, II, and III
B)   II, III, and IV
C)   I, III, and IV
D)   I, II, and IV
E)   I, II, III, and IVF) D) and E)
G) B) and E)

Question 8

Which of the following molecules has polar bonds but is a nonpolar molecule PCl5, PCl3, NCl3, CO2

Accepted Answer

A)   NCl3 and CO2
B)   PCl5 and CO2
C)   PCl3 and CO2
D)   PCl5, PCl3, NCl3 and CO2
E)  None of the aboveF) B) and C)
G) A) and E)

Question 9

The bond in O2 is shorter than the bond in O2+.

Accepted Answer

A) True 
 B)False

Question 10

A central atom with 4 electron pairs (single bonds and/or lone pairs of electrons)  could have which of the following molecular geometries
I. Trigonal bipyramidal
II. Tetrahed ral
III. Trigonal pyramidal
IV. Bent

Accepted Answer

A)   I and II
B)   II and III
C)   II, III, and IV
D)   I and IV
E)   I, II, and IVF) B) and E)
G) C) and D)

Question 11

Indicate the type of hybrid orbitals used by the central atom in SF6.

Accepted Answer

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

Question 12

In which of the following would the bonding be strengthened with the addition of an electron to form the negative molecular ion

Accepted Answer

A)   N2
B)   O2
C)   F2
D)   all of these
E)   none of theseF) A) and B)
G) All of the above

Question 13

The geometry of the hybrid orbitals about a central atom with sp3d hybridization is:

Accepted Answer

A)   linear
B)   trigonal planar
C)   tetrahedral
D)   bent
E)   trigonal bipyramidalF) A) and B)
G) All of the above

Question 14

The hybridization of B in the BF3 molecule is sp3.

Accepted Answer

A) True 
 B)False

Question 15

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) D) and E)
G) A) and C)

Question 16

More energy is required to break a bond with an order of 3/2 than is required to break a bond of order 2.

Accepted Answer

A) True 
 B)False

Question 17

The geometry of the hybrid orbitals of the central atom of a molecule is always the same as molecular geometry.

Accepted Answer

A) True 
 B)False

Question 18

Indicate the type of hybrid orbitals used by the central atom in BrF3.

Accepted Answer

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

Question 19

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) All of the above

Question 20

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 B)
G) A) and C)

Exam 10: Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

In which of the following would the bonding be strengthened with the addition of an electron to form the negative molecular ion

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Which of the following molecules has polar bonds but is a nonpolar molecule PCl5, PCl3, NCl3, CO2

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The hybridization of B in the BF3 molecule is sp3.

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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

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Indicate the type of hybrid orbitals used by the central atom in BrF3.

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

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

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In VSEPR theory the molecular geometry of SF4 (sulfur tetrafluoride) is distorted tetrahedron (seesaw).

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The geometry of the hybrid orbitals about a central atom with sp3d hybridization is:

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A central atom with 4 electron pairs (single bonds and/or lone pairs of electrons) could have which of the following molecular geometries I. Trigonal bipyramidal II. Tetrahed ral III. Trigonal pyramidal IV. Bent

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

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The bond in O2 is shorter than the bond in O2+.

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The geometry of the hybrid orbitals of the central atom of a molecule is always the same as molecular geometry.

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More energy is required to break a bond with an order of 3/2 than is required to break a bond of order 2.

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A central atom with 5 electron pairs (single bonds and/or lone pairs of electrons) could have which of the following molecular geometries I. Trigonal bipyramidal II. Seesaw III. T-shaped IV. Linear

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Give the number of lone pairs around the central atom and the molecular geometry of SCl2.

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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

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What is the bond order of CO+

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Indicate the type of hybrid orbitals used by the central atom in SF6.

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A sp2 hybridized central atom has what angles between its hybrid orbitals

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Which of the following molecules has polar bonds but is a nonpolar molecule PCl₅, PCl₃, NCl₃, CO₂

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The hybridization of B in the BF₃ molecule is sp³.

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Indicate the type of hybrid orbitals used by the central atom in BrF₃.

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

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

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In VSEPR theory the molecular geometry of SF₄ (sulfur tetrafluoride) is distorted tetrahedron (seesaw).

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The geometry of the hybrid orbitals about a central atom with sp³d hybridization is:

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

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The bond in O₂ is shorter than the bond in O₂⁺.

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Give the number of lone pairs around the central atom and the molecular geometry of SCl₂.

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What is the bond order of CO⁺

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Indicate the type of hybrid orbitals used by the central atom in SF₆.

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A sp² hybridized central atom has what angles between its hybrid orbitals

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