Question 1

Which molecule or ion does not have a trigonal pyramidal molecular geometry?

Accepted Answer

A)  PO33-
B)  SO32-
C)  NI3
D)  BF3
E)  XeO3F) None of the above
G) C) and D)

Question 2

Which of the following statements best describes N2O?

Accepted Answer

A)  The molecular geometry is bent and the molecule is nonpolar.
B)  The molecular geometry is linear and the molecule is nonpolar.
C)  The molecular geometry is linear and the molecule is polar.
D)  The molecular geometry is trigonal planar and the molecule is nonpolar.
E)  The molecular geometry is bent and the molecule is polar.F) C) and E)
G) A) and B)

Question 3

Which of the following statements is incorrect regarding the water molecule?

Accepted Answer

A)  There are two lone pairs and two bonding pairs on the central atom.
B)  The molecule is polar.
C)  The hybridization of oxygen is sp3.
D)  The hybridization of hydrogen is sp.
E)  The molecular geometry is bent.F) A) and D)
G) B) and D)

Question 4

Which molecule or ion has the highest bond order?

Accepted Answer

A)  F2-
B)  O2
C)  O22-
D)  N2
E)  F2F) A) and E)
G) B) and C)

Question 5

The molecular geometry of the ammonium ion,NH4+,is most similar to the molecular geometry of

Accepted Answer

A)  NH3.
B)  CH4.
C)  N2H4.
D)  NH2-.
E)  CH3+.F) A) and B)
G) None of the above

Question 6

In ClF3,the electron pairs are arranged about the chlorine atom in

Accepted Answer

A)  a square plane.
B)  a tetrahedron.
C)  an octahedron.
D)  a trigonal pyramid.
E)  a trigonal bipyramid.F) C) and D)
G) A) and E)

Question 7

Which molecule or ion does not have a trigonal pyramidal molecular geometry?

Accepted Answer

A)  AsF3
B)  NF3
C)  PF3
D)  BF3
E)  IO3-F) A) and B)
G) A) and E)

Question 8

What is the hybridization of the nitrogen atom in the nitrite ion?

Accepted Answer

A)  sp3d
B)  sp3
C)  s
D)  sp
E)  sp2F) A) and B)
G) D) and E)

Question 9

The nitrosyl ion,NO+,has ten bonding electrons and four antibonding electrons.Therefore,it has a bond order of

Accepted Answer

A)  1.
B)  5/2.
C)  7.
D)  2.
E)  3.F) A) and E)
G) D) and E)

Question 10

Given the molecular orbital diagram for dinitrogen (N2) excluding the K shells below,which of the following molecules or ions is expected to be diamagnetic? 2) excluding the K shells below,which of the following molecules or ions is expected to be diamagnetic?   A) C22- B) O2 C) B2 D) O2- E) O2+" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  C22-
B)  O2
C)  B2
D)  O2-
E)  O2+F) C) and E)
G) A) and E)

Question 11

For which molecule or ion does the nitrogen atom have the positive end of the dipole moment?

Accepted Answer

A)  NH4+
B)  CN−
C)  NO
D)  HCN
E)  N2F) None of the above
G) A) and D)

Question 12

Which of the following species has(have) a bond order of 2?
1) NO-
2.O2
3.O2-

Accepted Answer

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

Question 13

Which molecule or ion has a trigonal planar molecular geometry?

Accepted Answer

A)  PCl3
B)  HCN
C)  CO32-
D)  HCCH
E)  AsF3F) C) and E)
G) A) and D)

Question 14

What is the molecular geometry around carbon atom C1?
​ 1? ​   A) tetrahedral B) trigonal planar C) linear D) trigonal pyramidal E) bent" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  tetrahedral
B)  trigonal planar
C)  linear
D)  trigonal pyramidal
E)  bentF) A) and B)
G) C) and D)

Question 15

What is the electron geometry (or electron arrangement) around an atom in a molecule or ion which is surrounded by three lone pairs of electrons and one single bond.

Accepted Answer

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

Question 16

Which molecule or ion is not planar?

Accepted Answer

A)  H2CO
B)  NO2-
C)  C2F4
D)  H2CCO
E)  PO43-F) B) and E)
G) A) and C)

Question 17

Which molecule or ion is not planar?

Accepted Answer

A)  XeF4
B)  NO3-
C)  BCl3
D)  F2CCF2
E)  CF4F) A) and E)
G) C) and D)

Question 18

The approximate H-C-C bond angle in ethane,C2H6,is

Accepted Answer

A)  60°.
B)  180°.
C)  120°.
D)  109°.
E)  90°.F) A) and B)
G) A) and C)

Question 19

How many sigma and pi bonds are in the molecule pictured below?

Accepted Answer

A)  thirteen sigma bonds and one pi bond
B)  eleven sigma bonds and two pi bonds
C)  thirteen sigma bonds and two pi bonds
D)  eleven sigma bonds and five pi bonds
E)  five sigma bonds and eleven pi bondsF) A) and B)
G) A) and E)

Question 20

What is the bond angle in a trigonal planar molecule or ion?

Accepted Answer

A)  109°
B)  180°
C)  90°
D)  72°
E)  120°F) B) and D)
G) A) and C)

Exam 10: Molecular Geometry and Chemical Bonding Theory

Which molecule or ion is not planar?

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Which molecule or ion is not planar?

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The approximate H-C-C bond angle in ethane,C2H6,is

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Given the molecular orbital diagram for dinitrogen (N2) excluding the K shells below,which of the following molecules or ions is expected to be diamagnetic?

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Which of the following statements is incorrect regarding the water molecule?

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The nitrosyl ion,NO+,has ten bonding electrons and four antibonding electrons.Therefore,it has a bond order of

Correct AnswerverifiedShow Answer

Which molecule or ion does not have a trigonal pyramidal molecular geometry?

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In ClF3,the electron pairs are arranged about the chlorine atom in

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How many sigma and pi bonds are in the molecule pictured below?

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For which molecule or ion does the nitrogen atom have the positive end of the dipole moment?

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Which of the following species has(have) a bond order of 2? 1) NO- 2.O2 3.O2-

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What is the molecular geometry around carbon atom C1? ​

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Which molecule or ion has a trigonal planar molecular geometry?

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The molecular geometry of the ammonium ion,NH4+,is most similar to the molecular geometry of

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What is the hybridization of the nitrogen atom in the nitrite ion?

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What is the bond angle in a trigonal planar molecule or ion?

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Which of the following statements best describes N2O?

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Which molecule or ion has the highest bond order?

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What is the electron geometry (or electron arrangement) around an atom in a molecule or ion which is surrounded by three lone pairs of electrons and one single bond.

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Which molecule or ion does not have a trigonal pyramidal molecular geometry?

Correct AnswerverifiedShow Answer

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The approximate H-C-C bond angle in ethane,C₂H₆,is

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Given the molecular orbital diagram for dinitrogen (N₂) excluding the K shells below,which of the following molecules or ions is expected to be diamagnetic?

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The nitrosyl ion,NO⁺,has ten bonding electrons and four antibonding electrons.Therefore,it has a bond order of

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In ClF₃,the electron pairs are arranged about the chlorine atom in

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Which of the following species has(have) a bond order of 2? 1) NO^-2.O₂3.O₂^-

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What is the molecular geometry around carbon atom C₁?

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The molecular geometry of the ammonium ion,NH₄⁺,is most similar to the molecular geometry of

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Which of the following statements best describes N₂O?

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