Question 1

Which of the following has a boiling point that does not fit the general trend?

Accepted Answer

A)   NH3
B)   PH3
C)   AsH3
D)   SbH3
E)   BiH3F) All of the above
G) C) and D)

Question 2

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following pairs is arranged with the particle of higher polarizability listed first?

Accepted Answer

A)   Se2-, S2-
B)   I, I-
C)   Mg2+, Mg
D)   Br, I
E)   None of these choices are correct.F) A) and B)
G) A) and C)

Question 4

Hexagonal close packing of identical atoms occurs when close-packed layers are stacked in an abcabc... arrangement.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements about ceramics is incorrect?

Accepted Answer

A)   Silicon carbide has a diamond-like structure.
B)   Boron nitride can exist in both diamond-like and graphite-like forms.
C)   Silicon carbide can be prepared by direct reaction of silicon and carbon.
D)   Superconducting ceramics present manufacturing difficulties owing to their brittleness.
E)   Superconducting ceramic compounds usually incorporate cobalt in a key role.F) None of the above
G) C) and E)

Question 6

Ammonia's unusually high melting point is the result of

Accepted Answer

A)   dipole-dipole forces.
B)   London dispersion forces.
C)   hydrogen bonding.
D)   covalent bonding.
E)   ionic bonding.F) B) and C)
G) C) and D)

Question 7

For the solid forms of the following elements, which one is most likely to be of the molecular type?

Accepted Answer

A)   Xe
B)   C
C)   Pb
D)   S
E)   CrF) A) and B)
G) B) and E)

Question 8

In an ionic solid MX consisting of the monatomic ions, M+ and X-, the coordination number of M+ is

Accepted Answer

A)   1.
B)   2.
C)   6.
D)   8.
E)   It is impossible to predict without knowing the crystal structure of MX.F) A) and E)
G) D) and E)

Question 9

In the packing of identical atoms with cubic unit cells, the packing efficiency increases as the coordination number increases.

Accepted Answer

A) True 
 B)False

Question 10

The strongest intermolecular interactions between hydrogen fluoride (HF)  molecules arise from

Accepted Answer

A)   dipole-dipole forces.
B)   London dispersion forces.
C)   hydrogen bonding.
D)   ion-dipole interactions.
E)   ionic bonds.F) B) and D)
G) B) and C)

Exam 12: Intermolecular Forces Liquids, Solids, and Phase Changes

Which of the following statements about ceramics is incorrect?

Correct Answer
verified

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Correct Answer
verified

Which of the following pairs is arranged with the particle of higher polarizability listed first?

Correct Answer
verified

For the solid forms of the following elements, which one is most likely to be of the molecular type?

Correct Answer
verified

Hexagonal close packing of identical atoms occurs when close-packed layers are stacked in an abcabc... arrangement.

Correct Answer
verified

Which of the following has a boiling point that does not fit the general trend?

Correct Answer
verified

Ammonia's unusually high melting point is the result of

Correct Answer
verified

In an ionic solid MX consisting of the monatomic ions, M⁺ and X^-, the coordination number of M⁺ is

Correct Answer
verified

In the packing of identical atoms with cubic unit cells, the packing efficiency increases as the coordination number increases.

Correct Answer
verified

The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from

Correct Answer
verified

Exam 12: Intermolecular Forces Liquids, Solids, and Phase Changes

Which of the following statements about ceramics is incorrect?

Correct AnswerverifiedShow Answer

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Correct AnswerverifiedShow Answer

Which of the following pairs is arranged with the particle of higher polarizability listed first?

Correct AnswerverifiedShow Answer

For the solid forms of the following elements, which one is most likely to be of the molecular type?

Correct AnswerverifiedShow Answer

Hexagonal close packing of identical atoms occurs when close-packed layers are stacked in an abcabc... arrangement.

Correct AnswerverifiedShow Answer

Which of the following has a boiling point that does not fit the general trend?

Correct AnswerverifiedShow Answer

Ammonia's unusually high melting point is the result of

Correct AnswerverifiedShow Answer

In an ionic solid MX consisting of the monatomic ions, M+ and X-, the coordination number of M+ is

Correct AnswerverifiedShow Answer

In the packing of identical atoms with cubic unit cells, the packing efficiency increases as the coordination number increases.

Correct AnswerverifiedShow Answer

The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In an ionic solid MX consisting of the monatomic ions, M⁺ and X^-, the coordination number of M⁺ is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified