Question 1

The primary commercial use of nitric acid is .

Accepted Answer

A)  in the manufacture of anti- depressant drugs 
B)  in the manufacture of explosives 
C)  in the manufacture of fertilizers 
D)  in the manufacture of plastics 
E)  in pool water maintenance 
A)  in the manufacture of anti- depressant drugs 
B)  in the manufacture of explosives 
C)  in the manufacture of fertilizers 
D)  in the manufacture of plastics 
E)  in pool water maintenance

Question 2

Of the following, which is an ionic hydride?

Accepted Answer

A)  BaH2 
B)  CaH2 
C)  LiH 
D)  SrH2 
E)  all of the above 
A)  BaH2 
B)  CaH2 
C)  LiH 
D)  SrH2 
E)  all of the above

Question 3

Boron can violate the octet rule in its compounds in that

Accepted Answer

A)  it can have an expanded octet. 
B)  boron cannot violate the octet rule. 
C)  it can exist in a molecule with an odd number of electrons. 
D)  it can have fewer than eight valence electrons. 
E)  its compounds are all ionic. 
A)  it can have an expanded octet. 
B)  boron cannot violate the octet rule. 
C)  it can exist in a molecule with an odd number of electrons. 
D)  it can have fewer than eight valence electrons. 
E)  its compounds are all ionic.

Question 4

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O2 are .

Accepted Answer

A)  CO2 and H2 
B)  CO2 and H2O2 
C)  C(graphite) and H2 
D)  CO2 and H 
E)  CO2 and H2O 
A)  CO2 and H2 
B)  CO2 and H2O2 
C)  C(graphite) and H2 
D)  CO2 and H 
E)  CO2 and H2O

Question 5

Which noble gas is known to form a variety of binary compounds?

Accepted Answer

A)  He 
B)  Ne 
C)  Xe 
D)  Ar 
E)  Kr 
A)  He 
B)  Ne 
C)  Xe 
D)  Ar 
E)  Kr

Question 6

The oxidation state of fluorine in its compounds is

Accepted Answer

A)  negative unless it combines with oxygen. 
B)  negative unless it combines with another halogen. 
C)  positive unless it combines with another halogen. 
D)  always negative. 
E)  negative unless it combines with an active metal. 
A)  negative unless it combines with oxygen. 
B)  negative unless it combines with another halogen. 
C)  positive unless it combines with another halogen. 
D)  always negative. 
E)  negative unless it combines with an active metal.

Question 7

Silicones can be oils or rubber- like materials depending on

Accepted Answer

A)  the oxidation state of silicon in the chain. 
B)  the silicon- to- oxygen ratio. 
C)  the percentage of sulfur in the chain. 
D)  the length of the chain and degree of cross- linking. 
E)  the percentage of carbon in the chain. 
A)  the oxidation state of silicon in the chain. 
B)  the silicon- to- oxygen ratio. 
C)  the percentage of sulfur in the chain. 
D)  the length of the chain and degree of cross- linking. 
E)  the percentage of carbon in the chain.

Question 8

Nearly all commercial oxygen is obtained .

Accepted Answer

A)  by thermal decomposition of potassium chlorate 
B)  by thermal cracking of petroleum 
C)  from air 
D)  by electrolysis of water 
E)  as a byproduct of the preparation of aluminum in the Hall process 
A)  by thermal decomposition of potassium chlorate 
B)  by thermal cracking of petroleum 
C)  from air 
D)  by electrolysis of water 
E)  as a byproduct of the preparation of aluminum in the Hall process

Question 9

What is the primary commercial source of elemental nitrogen?

Accepted Answer

fractional

Question 10

In metallic hydrides, the oxidation number of hydrogen is considered to be .

Accepted Answer

A)  - 2 
B)  - 1 
C)  0 
D)  +1 
E)  +2 
A)  - 2 
B)  - 1 
C)  0 
D)  +1 
E)  +2

Question 11

What are the products of the reaction of PF3 (g) and water?

Accepted Answer

A)  phosphoric acid and phosphorous acid 
B)  elemental phosphorus and fluorine gas 
C)  phosphoric acid and fluorine gas 
D)  phosphorous acid and hydrofluoric acid 
E)  elemental phosphorus and hydrofluoric acid 
A)  phosphoric acid and phosphorous acid 
B)  elemental phosphorus and fluorine gas 
C)  phosphoric acid and fluorine gas 
D)  phosphorous acid and hydrofluoric acid 
E)  elemental phosphorus and hydrofluoric acid

Question 12

Which one of the following compounds is peroxide?

Accepted Answer

A)  H2O 
B)  both Na2O2 and CsO2 
C)  Na2O2 
D)  CsO2 
E)  Li2O 
A)  H2O 
B)  both Na2O2 and CsO2 
C)  Na2O2 
D)  CsO2 
E)  Li2O

Question 13

A disproportionation reaction is one in which

Accepted Answer

A)  an insoluble salt separates into ions. 
B)  aqueous ions combine to form an insoluble salt. 
C)  the ratio of combination of two elements in a compound changes. 
D)  a compound is separated into its constituent elements. 
E)  a single element is both oxidized and reduced. 
A)  an insoluble salt separates into ions. 
B)  aqueous ions combine to form an insoluble salt. 
C)  the ratio of combination of two elements in a compound changes. 
D)  a compound is separated into its constituent elements. 
E)  a single element is both oxidized and reduced.

Question 14

Which of the following would produce the most strongly basic aqueous solution?

Accepted Answer

A)  CO2  
B)  CO 
C)  HCO3-  
D)  CO32-  
E)  NaHCO3 
A)  CO2  
B)  CO 
C)  HCO3-  
D)  CO32-  
E)  NaHCO3

Question 15

Hybridization of Xe in XeF4 is and in XeF2 is _ .

Accepted Answer

A)  sp3d2, sp3d2 
B)  sp3, sp3d2 
C)  sp3d2, sp3d 
D)  sp3d, sp3d2 
E)  sp3, sp3d 
A)  sp3d2, sp3d2 
B)  sp3, sp3d2 
C)  sp3d2, sp3d 
D)  sp3d, sp3d2 
E)  sp3, sp3d

Question 16

Write the balanced equation for the reaction of lithium nitride with water.

Accepted Answer

Li₃N + 3H₂O

Question 17

The oxidation of silicon in SiO44- is _ .

Accepted Answer

A)  +4 
B)  +6 
C)  - 4 
D)  +2 
E)  0 
A)  +4 
B)  +6 
C)  - 4 
D)  +2 
E)  0

Question 18

Carbon dioxide is produced

Accepted Answer

A)  by fermentation of sugar during the production of ethanol. 
B)  by combustion of carbon- containing substances in an excess of oxygen. 
C)  when carbonates are heated. 
D)  by all of these processes. 
E)  in blast furnaces when metal oxides are reduced with CO. 
A)  by fermentation of sugar during the production of ethanol. 
B)  by combustion of carbon- containing substances in an excess of oxygen. 
C)  when carbonates are heated. 
D)  by all of these processes. 
E)  in blast furnaces when metal oxides are reduced with CO.

Question 19

Explain why hydrofluoric acid etches glass.

Accepted Answer

Hydrofluoric acid forms a solu

Question 20

What noble gas is radioactive?

Accepted Answer

The answer of What noble gas is radioactive?...

Exam 22: Chemistry of the Nonmetals

The primary commercial use of nitric acid is .

Of the following, which is an ionic hydride?

Boron can violate the octet rule in its compounds in that

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O2 are .

Which noble gas is known to form a variety of binary compounds?

The oxidation state of fluorine in its compounds is

Silicones can be oils or rubber- like materials depending on

Nearly all commercial oxygen is obtained .

What is the primary commercial source of elemental nitrogen?

In metallic hydrides, the oxidation number of hydrogen is considered to be .

What are the products of the reaction of PF3 (g) and water?

Which one of the following compounds is peroxide?

A disproportionation reaction is one in which

Which of the following would produce the most strongly basic aqueous solution?

Hybridization of Xe in XeF4 is and in XeF2 is _ .

Write the balanced equation for the reaction of lithium nitride with water.

The oxidation of silicon in SiO44- is _ .

Carbon dioxide is produced

Explain why hydrofluoric acid etches glass.

What noble gas is radioactive?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O₂are .

What are the products of the reaction of PF₃(g) and water?

Hybridization of Xe in XeF₄is and in XeF₂is _ .

The oxidation of silicon in SiO₄⁴^-is _ .