Question 1

Phosphoric acid is the most important of the phosphorus oxoacids. Industrially, phosphoric acid is prepared by

Accepted Answer

A)  the Ostwald process. 
B)  the Haber process. 
C)  the reaction of phosphate rock with sulfuric acid. 
D)  the reaction of P4O10 with water. 
E)  the Frasch process. 
A)  the Ostwald process. 
B)  the Haber process. 
C)  the reaction of phosphate rock with sulfuric acid. 
D)  the reaction of P4O10 with water. 
E)  the Frasch process.

Question 2

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the water gas reaction.C(s) + H2O(g) $\rarr$ CO(g) + H2(g)

Accepted Answer

A) True 
 B)False

Question 3

Which of the following choices is/are covalent oxides
I. SrO 
II. SiO2 
III. SO2

Accepted Answer

A)  I only 
B)  II only 
C)  III only 
D)  I and II 
E)  II and III 
A)  I only 
B)  II only 
C)  III only 
D)  I and II 
E)  II and III

Question 4

Chlorine gas is prepared commercially by

Accepted Answer

A)  electrolysis of carbon tetrachloride. 
B)  oxidation of chloride ion with F2(g). 
C)  electrolysis of NaCl(aq). 
D)  oxidation of chloride ion with Br2(aq). 
E)  electrolysis of AlCl3(aq). 
A)  electrolysis of carbon tetrachloride. 
B)  oxidation of chloride ion with F2(g). 
C)  electrolysis of NaCl(aq). 
D)  oxidation of chloride ion with Br2(aq). 
E)  electrolysis of AlCl3(aq).

Question 5

Write the chemical formula of the oxide ion.

Accepted Answer

A)  O2- 
B)  O- 
C)  O2- 
D)  O22- 
E)  None of the above 
A)  O2- 
B)  O- 
C)  O2- 
D)  O22- 
E)  None of the above

Question 6

Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown in the following balanced chemical equation:
SiO2(s) + 3C(s) $\rarr$ SiC(s) + 2CO(g)

Accepted Answer

A) True 
 B)False

Question 7

Which of these industrial chemicals is produced in the greatest amount annually

Accepted Answer

A)  HNO3 
B)  H3PO4 
C)  H2 
D)  H2SO4 
E)  HClO3 
A)  HNO3 
B)  H3PO4 
C)  H2 
D)  H2SO4 
E)  HClO3

Question 8

The Ostwald process is the main method for the manufacture of nitric acid. In the first step of this process

Accepted Answer

A)  nitrogen and hydrogen react to form NH3. 
B)  ammonia is burned in O2 to generate N2 and H2O. 
C)  nitrogen and oxygen react to form NO2. 
D)  nitrogen and oxygen react to form NO. 
E)  ammonia is burned with O2 to generate NO and H2O. 
A)  nitrogen and hydrogen react to form NH3. 
B)  ammonia is burned in O2 to generate N2 and H2O. 
C)  nitrogen and oxygen react to form NO2. 
D)  nitrogen and oxygen react to form NO. 
E)  ammonia is burned with O2 to generate NO and H2O.

Question 9

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas) and steam.2 C3H8(g) + 3H2O(g) $\rarr$ 6CO(g) + 7H2(g)

Accepted Answer

A) True 
 B)False

Question 10

Which of the following substances is a peroxide

Accepted Answer

A)  KO2 
B)  Na2O2 
C)  CO2 
D)  CaO 
E)  Al2O3 
A)  KO2 
B)  Na2O2 
C)  CO2 
D)  CaO 
E)  Al2O3

Question 11

Write the chemical formula of the peroxide ion.

Accepted Answer

A)  O2- 
B)  O- 
C)  O2- 
D)  O22- 
E)  None of the above 
A)  O2- 
B)  O- 
C)  O2- 
D)  O22- 
E)  None of the above

Question 12

P4O6 and P4O10 are allotropes of phosphorus.

Accepted Answer

A) True 
 B)False

Question 13

Write the formula for the binary hydride you would expect calcium to form.

Accepted Answer

A)  CaH 
B)  Ca2H 
C)  Ca3H2 
D)  CaH2 
E)  None of the above 
A)  CaH 
B)  Ca2H 
C)  Ca3H2 
D)  CaH2 
E)  None of the above

Question 14

Based on the following options, select the compound with hydrogen in the - 1 oxidation state.

Accepted Answer

A)  NaH 
B)  B2H6 
C)  H2SO4 
D)  H2S 
E)  PH3 
A)  NaH 
B)  B2H6 
C)  H2SO4 
D)  H2S 
E)  PH3

Question 15

Which one of the following compounds can react with water to form oxygen gas

Accepted Answer

A)  PCl5 
B)  NO2 
C)  H2O2 
D)  KH 
E)  NH3 
A)  PCl5 
B)  NO2 
C)  H2O2 
D)  KH 
E)  NH3

Question 16

Choose the formula that does not represent a stable allotrope.

Accepted Answer

A)  N2 
B)  S8 
C)  O2 
D)  P2 
E)  I2 
A)  N2 
B)  S8 
C)  O2 
D)  P2 
E)  I2

Question 17

A chemical formula of the carbide ion is

Accepted Answer

A)  Si4- 
B)  C2- 
C)  C22- 
D)  CN- 
E)  C3- 
A)  Si4- 
B)  C2- 
C)  C22- 
D)  CN- 
E)  C3-

Question 18

Which one of the following compounds can react with water to form hydrogen gas

Accepted Answer

A)  PCl5 
B)  NO2 
C)  H2O2 
D)  KH 
E)  NH3 
A)  PCl5 
B)  NO2 
C)  H2O2 
D)  KH 
E)  NH3

Question 19

Based on the following options, select the substance with hydrogen in the +1 oxidation state.

Accepted Answer

A)  KH 
B)  CH4 
C)  H2 
D)  AlH3 
E)  SrH2 
A)  KH 
B)  CH4 
C)  H2 
D)  AlH3 
E)  SrH2

Question 20

The bond energy of F2 is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom. Which of the following periodic properties is also unusually low in the case of fluorine

Accepted Answer

A)  first ionization energy 
B)  electron affinity 
C)  electronegativity 
D)  diatomic bond length 
E)  ionic radius 
A)  first ionization energy 
B)  electron affinity 
C)  electronegativity 
D)  diatomic bond length 
E)  ionic radius

Exam 22: Nonmetallic Elements and Their Compounds

Phosphoric acid is the most important of the phosphorus oxoacids. Industrially, phosphoric acid is prepared by

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the water gas reaction.C(s) + H2O(g) →\rarr→ CO(g) + H2(g)

Which of the following choices is/are covalent oxides I. SrO II. SiO2 III. SO2

Chlorine gas is prepared commercially by

Write the chemical formula of the oxide ion.

Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown in the following balanced chemical equation: SiO2(s) + 3C(s) →\rarr→ SiC(s) + 2CO(g)

Which of these industrial chemicals is produced in the greatest amount annually

The Ostwald process is the main method for the manufacture of nitric acid. In the first step of this process

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas) and steam.2 C3H8(g) + 3H2O(g) →\rarr→ 6CO(g) + 7H2(g)

Which of the following substances is a peroxide

Write the chemical formula of the peroxide ion.

P4O6 and P4O10 are allotropes of phosphorus.

Write the formula for the binary hydride you would expect calcium to form.

Based on the following options, select the compound with hydrogen in the - 1 oxidation state.

Which one of the following compounds can react with water to form oxygen gas

Choose the formula that does not represent a stable allotrope.

A chemical formula of the carbide ion is

Which one of the following compounds can react with water to form hydrogen gas

Based on the following options, select the substance with hydrogen in the +1 oxidation state.

The bond energy of F2 is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom. Which of the following periodic properties is also unusually low in the case of fluorine

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

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

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

Transition Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the water gas reaction.C(s) + H₂O(g) $\rarr$ CO(g) + H₂(g)

Which of the following choices is/are covalent oxides I. SrO II. SiO₂ III. SO₂

Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown in the following balanced chemical equation: SiO₂(s) + 3C(s) $\rarr$ SiC(s) + 2CO(g)

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the reaction of propane (C₃H₈, obtained from natural gas) and steam.2 C₃H₈(g) + 3H₂O(g) $\rarr$ 6CO(g) + 7H₂(g)

P₄O₆ and P₄O₁₀ are allotropes of phosphorus.

The bond energy of F₂ is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom. Which of the following periodic properties is also unusually low in the case of fluorine