Question 1

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)  N2

Question 2

Which molecule or ion is not planar?

Accepted Answer

A)  XeF4
B)  NO3-
C)  BCl3
D)  F2CCF2
E)  CF4

Question 3

Which molecule or ion has a trigonal planar molecular geometry?

Accepted Answer

A)  PCl3
B)  HCN
C)  CO32-
D)  HCCH
E)  AsF3

Question 4

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.

Question 5

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

Accepted Answer

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

Question 6

Which molecule or ion has the highest bond order?

Accepted Answer

A)  F2-
B)  O2
C)  O22-
D)  N2
E)  F2

Question 7

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 2

Question 8

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)  linear

Question 9

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+.

Question 10

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

Accepted Answer

A)  sp3d
B)  sp3
C)  s
D)  sp
E)  sp2

Question 11

Which molecule or ion is not planar?

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

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+

Question 14

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.

Question 15

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 bonds

Question 16

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)  bent

Question 17

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

Accepted Answer

A)  PO33-
B)  SO32-
C)  NI3
D)  BF3
E)  XeO3

Question 18

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.

Question 19

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

Accepted Answer

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

Question 20

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.

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

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Which molecule or ion has the highest bond order?

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

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

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

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What is the molecular geometry around carbon atom C1? ​

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

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Which of the following statements best describes N2O?

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

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Which molecule or ion has a trigonal planar molecular geometry?

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

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

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

Correct AnswerverifiedShow Answer

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

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

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What is the molecular geometry around carbon atom C₁?

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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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Which of the following statements best describes N₂O?

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

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