Question 1

Which of the following species have the same geometries?

Accepted Answer

A) NH2- and H2O 
B) NH2- and BeH2 
C) H2O and BeH2 
D) NH2-, H2O, and BeH2 
A) NH2- and H2O 
B) NH2- and BeH2 
C) H2O and BeH2 
D) NH2-, H2O, and BeH2

Question 2

Complete the following table.

Accepted Answer

The answer of Complete the following table.  ...

Question 3

Indicate the number of $\pi$-bonds in N2H2.

Accepted Answer

Question 4

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 these 
A) N2 
B) O2 
C) F2 
D) all of these 
E) none of these

Question 5

List the bond angles present in a molecule with an octahedral geometry?

Accepted Answer

The answer of List the bond angles present in a...

Question 6

A molecule with 3 single bonds and 0 lone pairs of electrons is predicted to have which type of molecular geometry?

Accepted Answer

A) Trigonal planar 
B) Trigonal pyramidal 
C) Bent 
D) Trigonal bipyramidal 
E) Linear 
A) Trigonal planar 
B) Trigonal pyramidal 
C) Bent 
D) Trigonal bipyramidal 
E) Linear

Question 7

A molecule with 3 single bonds (and any number of lone pairs)could have which of the following molecular geometries? I.Trigonal planar
II.Trigonal pyramidal
III.Seesaw
IV.T-shaped

Accepted Answer

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

Question 8

According to VSEPR theory, which one of the following molecules is trigonal bipyramidal?

Accepted Answer

A) SF4 
B) XeF4 
C) NF3 
D) SF6 
E) PF5 
A) SF4 
B) XeF4 
C) NF3 
D) SF6 
E) PF5

Question 9

Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containing the nuclei of the bonding atoms.

Accepted Answer

A) True 
 B)False

Question 10

An sp3 hybridized central carbon atom with no lone pairs of electrons has what type of bonding?

Accepted Answer

A) 1 $\pi$ and 2 $\sigma$ bonds 
B) 1 $\pi$ and 3 $\sigma$bonds 
C) 2 $\pi$ and 2 $\sigma$bonds 
D) 3 $\pi$ and 2 $\sigma$ bonds 
E) 0 $\pi$ and 4 $\sigma$bonds 
A) 1 $\pi$ and 2 $\sigma$ bonds 
B) 1 $\pi$ and 3 $\sigma$bonds 
C) 2 $\pi$ and 2 $\sigma$bonds 
D) 3 $\pi$ and 2 $\sigma$ bonds 
E) 0 $\pi$ and 4 $\sigma$bonds

Question 11

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

Accepted Answer

A) B2 
B) C2 
C) N2 
D) all of these 
E) none of these 
A) B2 
B) C2 
C) N2 
D) all of these 
E) none of these

Question 12

Which of the following substance is/are planar? (i)SO3  (ii)SO32-  (iii)NO3-  (iv)PF3 (v)BF3

Accepted Answer

A) (i)and (ii) 
B) (i), (iii), and (v) 
C) (iv) 
D) (i), (ii), (iii), and (v) 
E) (i), (iii), (iv), and (v) 
A) (i)and (ii) 
B) (i), (iii), and (v) 
C) (iv) 
D) (i), (ii), (iii), and (v) 
E) (i), (iii), (iv), and (v)

Question 13

The number of pi bonds in the molecule below is

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 10 
E) 15 
A) 2 
B) 4 
C) 6 
D) 10 
E) 15

Question 14

Consider the species O2-, O2, and O2+.Which of these species will be paramagnetic?

Accepted Answer

A) O2 and O2- 
B) O2+ and O2 
C) O2+ and O2- 
D) only O2 
E) all three are paramagnetic 
A) O2 and O2- 
B) O2+ and O2 
C) O2+ and O2- 
D) only O2 
E) all three are paramagnetic

Question 15

A molecule with 2 single bonds and 2 lone pairs of electrons around the central atom is predicted to have what type of molecular geometry?

Accepted Answer

A) Tetrahedral 
B) Trigonal pyramidal 
C) Bent 
D) Trigonal bipyramidal 
E) Linear 
A) Tetrahedral 
B) Trigonal pyramidal 
C) Bent 
D) Trigonal bipyramidal 
E) Linear

Question 16

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, 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 17

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 18

According to the VSEPR theory, the molecular geometry of ammonia is

Accepted Answer

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

Question 19

A molecule with 5 single bonds (and any number of lone pairs)could have which type of molecular geometry? I.Trigonal bipyramidal
II.Seesaw
III.T-shaped
IV.Square pyramidal

Accepted Answer

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

Question 20

Draw a Lewis structure for PF5 that shows the correct atom arrangement predicted by VSEPR theory.

Accepted Answer

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

Which of the following species have the same geometries?

Complete the following table.

Indicate the number of π\piπ -bonds in N2H2.

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

List the bond angles present in a molecule with an octahedral geometry?

A molecule with 3 single bonds and 0 lone pairs of electrons is predicted to have which type of molecular geometry?

A molecule with 3 single bonds (and any number of lone pairs)could have which of the following molecular geometries? I.Trigonal planar II.Trigonal pyramidal III.Seesaw IV.T-shaped

According to VSEPR theory, which one of the following molecules is trigonal bipyramidal?

Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containing the nuclei of the bonding atoms.

An sp3 hybridized central carbon atom with no lone pairs of electrons has what type of bonding?

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

Which of the following substance is/are planar? (i)SO3 (ii)SO32- (iii)NO3- (iv)PF3 (v)BF3

The number of pi bonds in the molecule below is

Consider the species O2-, O2, and O2+.Which of these species will be paramagnetic?

A molecule with 2 single bonds and 2 lone pairs of electrons around the central atom is predicted to have what type of molecular geometry?

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

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

According to the VSEPR theory, the molecular geometry of ammonia is

A molecule with 5 single bonds (and any number of lone pairs)could have which type of molecular geometry? I.Trigonal bipyramidal II.Seesaw III.T-shaped IV.Square pyramidal

Draw a Lewis structure for PF5 that shows the correct atom arrangement predicted by VSEPR theory.

Chemistry: the Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

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

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Indicate the number of $\pi$ -bonds in N₂H₂.

An sp³ hybridized central carbon atom with no lone pairs of electrons has what type of bonding?

Which of the following substance is/are planar? (i)SO₃ (ii)SO₃^2- (iii)NO₃^- (iv)PF₃ (v)BF₃

Consider the species O₂^-, O₂, and O₂⁺.Which of these species will be paramagnetic?

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

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

Draw a Lewis structure for PF₅ that shows the correct atom arrangement predicted by VSEPR theory.