Question 1

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 2

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2 
A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2

Question 3

Give the number of lone pairs around the central atom and the molecular geometry of XeF2.

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

Question 4

Indicate the number of $\pi$-bonds in C2H6.

Accepted Answer

The answer of Indicate the number of $\pi$-bonds in C2H6....

Question 5

Give the number of lone pairs around the central atom and the geometry of the ion ClO3-.

Accepted Answer

A) 0 lone pairs, trigonal 
B) 1 lone pair, bent 
C) 1 lone pair, trigonal pyramidal 
D) 2 lone pairs, T-shaped 
E) 2 lone pairs, trigonal 
A) 0 lone pairs, trigonal 
B) 1 lone pair, bent 
C) 1 lone pair, trigonal pyramidal 
D) 2 lone pairs, T-shaped 
E) 2 lone pairs, trigonal

Question 6

Which one of the following molecules is nonpolar?

Accepted Answer

A) NH3 
B) OF2 
C) CH3Cl 
D) H2O 
E) BeCl2 
A) NH3 
B) OF2 
C) CH3Cl 
D) H2O 
E) BeCl2

Question 7

Which of the following correctly lists species in order of increasing bond order?

Accepted Answer

A) C2 2 2 2 
B) Be2 2 2 2 
C) N2 2 2 2 
D) N2 2 2 2 
E) Be2 2 2 2 
A) C2 2 2 2 
B) Be2 2 2 2 
C) N2 2 2 2 
D) N2 2 2 2 
E) Be2 2 2 2

Question 8

Complete the following table.

Accepted Answer

The answer of Complete the following table.  ...

Question 9

A bonding molecular orbital is of lower energy (more stable)than the atomic orbitals from which it was formed.

Accepted Answer

A) True 
 B)False

Question 10

Give the number of lone pairs around the central atom and the molecular geometry of XeF4.

Accepted Answer

A) 0 lone pairs, tetrahedral 
B) 1 lone pair, distorted tetrahedron (seesaw) 
C) 1 lone pair, square pyramidal 
D) 1 lone pair, tetrahedral 
E) 2 lone pairs, square planar 
A) 0 lone pairs, tetrahedral 
B) 1 lone pair, distorted tetrahedron (seesaw) 
C) 1 lone pair, square pyramidal 
D) 1 lone pair, tetrahedral 
E) 2 lone pairs, square planar

Question 11

Use VSEPR theory to predict the geometry of the PCl3 molecule.

Accepted Answer

A) linear 
B) bent 
C) trigonal planar 
D) trigonal pyramidal 
E) tetrahedral 
A) linear 
B) bent 
C) trigonal planar 
D) trigonal pyramidal 
E) tetrahedral

Question 12

The bond angle in ICl2- is expected to be

Accepted Answer

A) a little less than 109.5°. 
B) 109.5°. 
C) a little more than 109.5°. 
D) 120°. 
E) 180°. 
A) a little less than 109.5°. 
B) 109.5°. 
C) a little more than 109.5°. 
D) 120°. 
E) 180°.

Question 13

Which of the following correctly lists species in order of increasing bond length?

Accepted Answer

A) O2 2+ 2- 
B) O2- 2 2+ 
C) O2+ 2 2- 
D) O2- 2+ 2 
E) O2+ 2- 2 
A) O2 2+ 2- 
B) O2- 2 2+ 
C) O2+ 2 2- 
D) O2- 2+ 2 
E) O2+ 2- 2

Question 14

Which one of the following molecules has a non-zero dipole moment?

Accepted Answer

A) BeCl2 
B) Br2 
C) BF3 
D) IBr 
E) CO2 
A) BeCl2 
B) Br2 
C) BF3 
D) IBr 
E) CO2

Question 15

Which one of the following molecules has tetrahedral geometry?

Accepted Answer

A) XeF4 
B) BF3 
C) AsF5 
D) CF4 
E) NH3 
A) XeF4 
B) BF3 
C) AsF5 
D) CF4 
E) NH3

Question 16

Give the number of lone pairs around the central atom and the molecular geometry of CBr4.

Accepted Answer

A) 0 lone pairs, square planar 
B) 0 lone pairs, tetahedral 
C) 1 lone pair, square pyramidal 
D) 1 lone pair, trigonal bipyramidal 
E) 2 lone pairs, square planar 
A) 0 lone pairs, square planar 
B) 0 lone pairs, tetahedral 
C) 1 lone pair, square pyramidal 
D) 1 lone pair, trigonal bipyramidal 
E) 2 lone pairs, square planar

Question 17

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2 
A) sp 
B) sp2 
C) sp3 
D) sp3d 
E) sp3d2

Question 18

According to the VSEPR theory, the actual F -As -F bond angles in the AsF4- ion are predicted to be

Accepted Answer

A) 109.5° 
B) 90° and 120° 
C) 180° 
D) < 109.5° 
E) < 90° and < 120° 
A) 109.5° 
B) 90° and 120° 
C) 180° 
D) < 109.5° 
E) < 90° and < 120°

Question 19

According to the VSEPR theory, all of the electron pair-electron pair repulsions about the central atom in PCl3 are of equal magnitude.

Accepted Answer

A) True 
 B)False

Question 20

According to VSEPR theory, which of the following triatomic ions should be linear: N3-, I3-, NO2-, ClO2-, SCN-.

Accepted Answer

N₃^-, I₃^-, and

Exam 10: Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

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

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below?

Give the number of lone pairs around the central atom and the molecular geometry of XeF2.

Indicate the number of π\piπ -bonds in C2H6.

Give the number of lone pairs around the central atom and the geometry of the ion ClO3-.

Which one of the following molecules is nonpolar?

Which of the following correctly lists species in order of increasing bond order?

Complete the following table.

A bonding molecular orbital is of lower energy (more stable)than the atomic orbitals from which it was formed.

Give the number of lone pairs around the central atom and the molecular geometry of XeF4.

Use VSEPR theory to predict the geometry of the PCl3 molecule.

The bond angle in ICl2- is expected to be

Which of the following correctly lists species in order of increasing bond length?

Which one of the following molecules has a non-zero dipole moment?

Which one of the following molecules has tetrahedral geometry?

Give the number of lone pairs around the central atom and the molecular geometry of CBr4.

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below?

According to the VSEPR theory, the actual F -As -F bond angles in the AsF4- ion are predicted to be

According to the VSEPR theory, all of the electron pair-electron pair repulsions about the central atom in PCl3 are of equal magnitude.

According to VSEPR theory, which of the following triatomic ions should be linear: N3-, I3-, NO2-, ClO2-, SCN-.

Chemistry: The Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Give the number of lone pairs around the central atom and the molecular geometry of XeF₂.

Indicate the number of $\pi$ -bonds in C₂H₆.

Give the number of lone pairs around the central atom and the geometry of the ion ClO₃^-.

Give the number of lone pairs around the central atom and the molecular geometry of XeF₄.

Use VSEPR theory to predict the geometry of the PCl₃ molecule.

The bond angle in ICl₂^- is expected to be

Give the number of lone pairs around the central atom and the molecular geometry of CBr₄.

According to the VSEPR theory, the actual F -As -F bond angles in the AsF₄^- ion are predicted to be

According to the VSEPR theory, all of the electron pair-electron pair repulsions about the central atom in PCl₃ are of equal magnitude.

According to VSEPR theory, which of the following triatomic ions should be linear: N₃^-, I₃^-, NO₂^-, ClO₂^-, SCN^-.